Home / 145,337.95-218,008.64-38,721.37

Finding the Fourth Proportional to 145,337.95, 218,008.64 and 38,721.37

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Solution

The fourth proportional to 145,337.95, 218,008.64 and 38,721.37 is: 58,082.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,337.95 : 218,008.64 = 38,721.37 : x
  2. Step 2: Convert to fraction form
    145,337.95/218,008.64 = 38,721.37/x
  3. Step 3: Cross multiply
    145,337.95x = 218,008.64 × 38,721.37
  4. Step 4: Simplify right side
    145,337.95x = 8,441,592,451.13
  5. Step 5: Solve for x
    x = 8,441,592,451.13/145,337.95
  6. Step 6: Final answer
    x = 58,082.51

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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.