Home / 145,631.01-218,166.63-89,306.88

Finding the Fourth Proportional to 145,631.01, 218,166.63 and 89,306.88

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Solution

The fourth proportional to 145,631.01, 218,166.63 and 89,306.88 is: 133,788.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,631.01 : 218,166.63 = 89,306.88 : x
  2. Step 2: Convert to fraction form
    145,631.01/218,166.63 = 89,306.88/x
  3. Step 3: Cross multiply
    145,631.01x = 218,166.63 × 89,306.88
  4. Step 4: Simplify right side
    145,631.01x = 19,483,781,045.41
  5. Step 5: Solve for x
    x = 19,483,781,045.41/145,631.01
  6. Step 6: Final answer
    x = 133,788.68

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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.