Home / 136,856.40-205,206.21-42,061.92

Finding the Fourth Proportional to 136,856.40, 205,206.21 and 42,061.92

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Solution

The fourth proportional to 136,856.40, 205,206.21 and 42,061.92 is: 63,068.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,856.40 : 205,206.21 = 42,061.92 : x
  2. Step 2: Convert to fraction form
    136,856.40/205,206.21 = 42,061.92/x
  3. Step 3: Cross multiply
    136,856.40x = 205,206.21 × 42,061.92
  4. Step 4: Simplify right side
    136,856.40x = 8,631,367,188.52
  5. Step 5: Solve for x
    x = 8,631,367,188.52/136,856.40
  6. Step 6: Final answer
    x = 63,068.79

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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.