Home / 125,889,422.10-188,834,133.15-74,745,114.90

Finding the Fourth Proportional to 125,889,422.10, 188,834,133.15 and 74,745,114.90

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Solution

The fourth proportional to 125,889,422.10, 188,834,133.15 and 74,745,114.90 is: 112,117,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,889,422.10 : 188,834,133.15 = 74,745,114.90 : x
  2. Step 2: Convert to fraction form
    125,889,422.10/188,834,133.15 = 74,745,114.90/x
  3. Step 3: Cross multiply
    125,889,422.10x = 188,834,133.15 × 74,745,114.90
  4. Step 4: Simplify right side
    125,889,422.10x = 14,114,428,979,338,650
  5. Step 5: Solve for x
    x = 14,114,428,979,338,650/125,889,422.10
  6. Step 6: Final answer
    x = 112,117,672.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.