Home / 99,625.68-137,481.60-54,303.36

Finding the Fourth Proportional to 99,625.68, 137,481.60 and 54,303.36

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Solution

The fourth proportional to 99,625.68, 137,481.60 and 54,303.36 is: 74,937.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,625.68 : 137,481.60 = 54,303.36 : x
  2. Step 2: Convert to fraction form
    99,625.68/137,481.60 = 54,303.36/x
  3. Step 3: Cross multiply
    99,625.68x = 137,481.60 × 54,303.36
  4. Step 4: Simplify right side
    99,625.68x = 7,465,712,818.18
  5. Step 5: Solve for x
    x = 7,465,712,818.18/99,625.68
  6. Step 6: Final answer
    x = 74,937.63

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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.