Home / 99,680.81-149,351.95-60,154.87

Finding the Fourth Proportional to 99,680.81, 149,351.95 and 60,154.87

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Solution

The fourth proportional to 99,680.81, 149,351.95 and 60,154.87 is: 90,130.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,680.81 : 149,351.95 = 60,154.87 : x
  2. Step 2: Convert to fraction form
    99,680.81/149,351.95 = 60,154.87/x
  3. Step 3: Cross multiply
    99,680.81x = 149,351.95 × 60,154.87
  4. Step 4: Simplify right side
    99,680.81x = 8,984,246,088.96
  5. Step 5: Solve for x
    x = 8,984,246,088.96/99,680.81
  6. Step 6: Final answer
    x = 90,130.15

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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.