Home / 125,133,087.90-187,699,631.85-73,988,780.70

Finding the Fourth Proportional to 125,133,087.90, 187,699,631.85 and 73,988,780.70

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Solution

The fourth proportional to 125,133,087.90, 187,699,631.85 and 73,988,780.70 is: 110,983,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,133,087.90 : 187,699,631.85 = 73,988,780.70 : x
  2. Step 2: Convert to fraction form
    125,133,087.90/187,699,631.85 = 73,988,780.70/x
  3. Step 3: Cross multiply
    125,133,087.90x = 187,699,631.85 × 73,988,780.70
  4. Step 4: Simplify right side
    125,133,087.90x = 13,887,666,898,420,386
  5. Step 5: Solve for x
    x = 13,887,666,898,420,386/125,133,087.90
  6. Step 6: Final answer
    x = 110,983,171.05

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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.