Home / 99,451.14-137,245.93-54,130.76

Finding the Fourth Proportional to 99,451.14, 137,245.93 and 54,130.76

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Solution

The fourth proportional to 99,451.14, 137,245.93 and 54,130.76 is: 74,702.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,451.14 : 137,245.93 = 54,130.76 : x
  2. Step 2: Convert to fraction form
    99,451.14/137,245.93 = 54,130.76/x
  3. Step 3: Cross multiply
    99,451.14x = 137,245.93 × 54,130.76
  4. Step 4: Simplify right side
    99,451.14x = 7,429,226,190.92
  5. Step 5: Solve for x
    x = 7,429,226,190.92/99,451.14
  6. Step 6: Final answer
    x = 74,702.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.