Home / 145,425.46-218,006.16-51,909.34

Finding the Fourth Proportional to 145,425.46, 218,006.16 and 51,909.34

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Solution

The fourth proportional to 145,425.46, 218,006.16 and 51,909.34 is: 77,816.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,425.46 : 218,006.16 = 51,909.34 : x
  2. Step 2: Convert to fraction form
    145,425.46/218,006.16 = 51,909.34/x
  3. Step 3: Cross multiply
    145,425.46x = 218,006.16 × 51,909.34
  4. Step 4: Simplify right side
    145,425.46x = 11,316,555,881.53
  5. Step 5: Solve for x
    x = 11,316,555,881.53/145,425.46
  6. Step 6: Final answer
    x = 77,816.88

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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.