Home / 99,918.59-137,885.99-54,595.58

Finding the Fourth Proportional to 99,918.59, 137,885.99 and 54,595.58

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Solution

The fourth proportional to 99,918.59, 137,885.99 and 54,595.58 is: 75,340.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,918.59 : 137,885.99 = 54,595.58 : x
  2. Step 2: Convert to fraction form
    99,918.59/137,885.99 = 54,595.58/x
  3. Step 3: Cross multiply
    99,918.59x = 137,885.99 × 54,595.58
  4. Step 4: Simplify right side
    99,918.59x = 7,527,965,324.95
  5. Step 5: Solve for x
    x = 7,527,965,324.95/99,918.59
  6. Step 6: Final answer
    x = 75,340.99

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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.