Home / 102,103,831.24-140,955,318.66-78,846,748.36

Finding the Fourth Proportional to 102,103,831.24, 140,955,318.66 and 78,846,748.36

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Solution

The fourth proportional to 102,103,831.24, 140,955,318.66 and 78,846,748.36 is: 108,848,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,103,831.24 : 140,955,318.66 = 78,846,748.36 : x
  2. Step 2: Convert to fraction form
    102,103,831.24/140,955,318.66 = 78,846,748.36/x
  3. Step 3: Cross multiply
    102,103,831.24x = 140,955,318.66 × 78,846,748.36
  4. Step 4: Simplify right side
    102,103,831.24x = 11,113,868,540,388,632
  5. Step 5: Solve for x
    x = 11,113,868,540,388,632/102,103,831.24
  6. Step 6: Final answer
    x = 108,848,692.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.