Home / 99,178.05-136,831.44-63,389.01

Finding the Fourth Proportional to 99,178.05, 136,831.44 and 63,389.01

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Solution

The fourth proportional to 99,178.05, 136,831.44 and 63,389.01 is: 87,454.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,178.05 : 136,831.44 = 63,389.01 : x
  2. Step 2: Convert to fraction form
    99,178.05/136,831.44 = 63,389.01/x
  3. Step 3: Cross multiply
    99,178.05x = 136,831.44 × 63,389.01
  4. Step 4: Simplify right side
    99,178.05x = 8,673,609,518.47
  5. Step 5: Solve for x
    x = 8,673,609,518.47/99,178.05
  6. Step 6: Final answer
    x = 87,454.93

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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.