Home / 99,380.34-137,145.15-54,058.68

Finding the Fourth Proportional to 99,380.34, 137,145.15 and 54,058.68

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Solution

The fourth proportional to 99,380.34, 137,145.15 and 54,058.68 is: 74,601.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,380.34 : 137,145.15 = 54,058.68 : x
  2. Step 2: Convert to fraction form
    99,380.34/137,145.15 = 54,058.68/x
  3. Step 3: Cross multiply
    99,380.34x = 137,145.15 × 54,058.68
  4. Step 4: Simplify right side
    99,380.34x = 7,413,885,777.40
  5. Step 5: Solve for x
    x = 7,413,885,777.40/99,380.34
  6. Step 6: Final answer
    x = 74,601.13

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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.