Home / 125,549,122.80-188,472,983.40-71,005,148.40

Finding the Fourth Proportional to 125,549,122.80, 188,472,983.40 and 71,005,148.40

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Solution

The fourth proportional to 125,549,122.80, 188,472,983.40 and 71,005,148.40 is: 106,592,159.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,549,122.80 : 188,472,983.40 = 71,005,148.40 : x
  2. Step 2: Convert to fraction form
    125,549,122.80/188,472,983.40 = 71,005,148.40/x
  3. Step 3: Cross multiply
    125,549,122.80x = 188,472,983.40 × 71,005,148.40
  4. Step 4: Simplify right side
    125,549,122.80x = 13,382,552,155,707,738
  5. Step 5: Solve for x
    x = 13,382,552,155,707,738/125,549,122.80
  6. Step 6: Final answer
    x = 106,592,159.76

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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.