Home / 99,860.31-137,808.27-54,539.60

Finding the Fourth Proportional to 99,860.31, 137,808.27 and 54,539.60

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Solution

The fourth proportional to 99,860.31, 137,808.27 and 54,539.60 is: 75,265.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,860.31 : 137,808.27 = 54,539.60 : x
  2. Step 2: Convert to fraction form
    99,860.31/137,808.27 = 54,539.60/x
  3. Step 3: Cross multiply
    99,860.31x = 137,808.27 × 54,539.60
  4. Step 4: Simplify right side
    99,860.31x = 7,516,007,233.45
  5. Step 5: Solve for x
    x = 7,516,007,233.45/99,860.31
  6. Step 6: Final answer
    x = 75,265.21

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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.