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Finding the Fourth Proportional to 99,077.80, 148,635.90 and 49,829.80

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Solution

The fourth proportional to 99,077.80, 148,635.90 and 49,829.80 is: 74,754.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,077.80 : 148,635.90 = 49,829.80 : x
  2. Step 2: Convert to fraction form
    99,077.80/148,635.90 = 49,829.80/x
  3. Step 3: Cross multiply
    99,077.80x = 148,635.90 × 49,829.80
  4. Step 4: Simplify right side
    99,077.80x = 7,406,497,169.82
  5. Step 5: Solve for x
    x = 7,406,497,169.82/99,077.80
  6. Step 6: Final answer
    x = 74,754.36

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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.