Home / 113,831.02-157,088.08-62,843.78

Finding the Fourth Proportional to 113,831.02, 157,088.08 and 62,843.78

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Solution

The fourth proportional to 113,831.02, 157,088.08 and 62,843.78 is: 86,725.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,831.02 : 157,088.08 = 62,843.78 : x
  2. Step 2: Convert to fraction form
    113,831.02/157,088.08 = 62,843.78/x
  3. Step 3: Cross multiply
    113,831.02x = 157,088.08 × 62,843.78
  4. Step 4: Simplify right side
    113,831.02x = 9,872,008,740.14
  5. Step 5: Solve for x
    x = 9,872,008,740.14/113,831.02
  6. Step 6: Final answer
    x = 86,725.12

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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.