Home / 121,575.03-182,426.78-86,264.54

Finding the Fourth Proportional to 121,575.03, 182,426.78 and 86,264.54

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Solution

The fourth proportional to 121,575.03, 182,426.78 and 86,264.54 is: 129,442.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,575.03 : 182,426.78 = 86,264.54 : x
  2. Step 2: Convert to fraction form
    121,575.03/182,426.78 = 86,264.54/x
  3. Step 3: Cross multiply
    121,575.03x = 182,426.78 × 86,264.54
  4. Step 4: Simplify right side
    121,575.03x = 15,736,963,274.16
  5. Step 5: Solve for x
    x = 15,736,963,274.16/121,575.03
  6. Step 6: Final answer
    x = 129,442.40

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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.