Home / 210,432.13-315,773.96-77,325.85

Finding the Fourth Proportional to 210,432.13, 315,773.96 and 77,325.85

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Solution

The fourth proportional to 210,432.13, 315,773.96 and 77,325.85 is: 116,034.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,432.13 : 315,773.96 = 77,325.85 : x
  2. Step 2: Convert to fraction form
    210,432.13/315,773.96 = 77,325.85/x
  3. Step 3: Cross multiply
    210,432.13x = 315,773.96 × 77,325.85
  4. Step 4: Simplify right side
    210,432.13x = 24,417,489,864.87
  5. Step 5: Solve for x
    x = 24,417,489,864.87/210,432.13
  6. Step 6: Final answer
    x = 116,034.99

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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.