Home / 131,217.18-196,831.86-42,477.66

Finding the Fourth Proportional to 131,217.18, 196,831.86 and 42,477.66

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Solution

The fourth proportional to 131,217.18, 196,831.86 and 42,477.66 is: 63,718.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,217.18 : 196,831.86 = 42,477.66 : x
  2. Step 2: Convert to fraction form
    131,217.18/196,831.86 = 42,477.66/x
  3. Step 3: Cross multiply
    131,217.18x = 196,831.86 × 42,477.66
  4. Step 4: Simplify right side
    131,217.18x = 8,360,956,826.25
  5. Step 5: Solve for x
    x = 8,360,956,826.25/131,217.18
  6. Step 6: Final answer
    x = 63,718.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.