Home / 103,324.07-142,502.63-72,798.35

Finding the Fourth Proportional to 103,324.07, 142,502.63 and 72,798.35

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Solution

The fourth proportional to 103,324.07, 142,502.63 and 72,798.35 is: 100,402.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,324.07 : 142,502.63 = 72,798.35 : x
  2. Step 2: Convert to fraction form
    103,324.07/142,502.63 = 72,798.35/x
  3. Step 3: Cross multiply
    103,324.07x = 142,502.63 × 72,798.35
  4. Step 4: Simplify right side
    103,324.07x = 10,373,955,258.16
  5. Step 5: Solve for x
    x = 10,373,955,258.16/103,324.07
  6. Step 6: Final answer
    x = 100,402.11

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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.