Home / 121,535.10-182,302.65-42,657.30

Finding the Fourth Proportional to 121,535.10, 182,302.65 and 42,657.30

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Solution

The fourth proportional to 121,535.10, 182,302.65 and 42,657.30 is: 63,985.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,535.10 : 182,302.65 = 42,657.30 : x
  2. Step 2: Convert to fraction form
    121,535.10/182,302.65 = 42,657.30/x
  3. Step 3: Cross multiply
    121,535.10x = 182,302.65 × 42,657.30
  4. Step 4: Simplify right side
    121,535.10x = 7,776,538,831.85
  5. Step 5: Solve for x
    x = 7,776,538,831.85/121,535.10
  6. Step 6: Final answer
    x = 63,985.95

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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.