Home / 99,666.84-149,331.09-60,140.90

Finding the Fourth Proportional to 99,666.84, 149,331.09 and 60,140.90

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Solution

The fourth proportional to 99,666.84, 149,331.09 and 60,140.90 is: 90,109.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,666.84 : 149,331.09 = 60,140.90 : x
  2. Step 2: Convert to fraction form
    99,666.84/149,331.09 = 60,140.90/x
  3. Step 3: Cross multiply
    99,666.84x = 149,331.09 × 60,140.90
  4. Step 4: Simplify right side
    99,666.84x = 8,980,906,150.58
  5. Step 5: Solve for x
    x = 8,980,906,150.58/99,666.84
  6. Step 6: Final answer
    x = 90,109.27

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1.5x scale

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.