Home / 99,478.11-137,275.32-54,154.93

Finding the Fourth Proportional to 99,478.11, 137,275.32 and 54,154.93

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Solution

The fourth proportional to 99,478.11, 137,275.32 and 54,154.93 is: 74,731.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,478.11 : 137,275.32 = 54,154.93 : x
  2. Step 2: Convert to fraction form
    99,478.11/137,275.32 = 54,154.93/x
  3. Step 3: Cross multiply
    99,478.11x = 137,275.32 × 54,154.93
  4. Step 4: Simplify right side
    99,478.11x = 7,434,135,345.33
  5. Step 5: Solve for x
    x = 7,434,135,345.33/99,478.11
  6. Step 6: Final answer
    x = 74,731.37

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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.