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Finding the Fourth Proportional to 99,523.20, 149,284.80 and 68,030.40

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Solution

The fourth proportional to 99,523.20, 149,284.80 and 68,030.40 is: 102,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,523.20 : 149,284.80 = 68,030.40 : x
  2. Step 2: Convert to fraction form
    99,523.20/149,284.80 = 68,030.40/x
  3. Step 3: Cross multiply
    99,523.20x = 149,284.80 × 68,030.40
  4. Step 4: Simplify right side
    99,523.20x = 10,155,904,657.92
  5. Step 5: Solve for x
    x = 10,155,904,657.92/99,523.20
  6. Step 6: Final answer
    x = 102,045.60

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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.