Home / 131,693,544.82-181,748,252.12-72,974,628.73

Finding the Fourth Proportional to 131,693,544.82, 181,748,252.12 and 72,974,628.73

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Solution

The fourth proportional to 131,693,544.82, 181,748,252.12 and 72,974,628.73 is: 100,711,171.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,693,544.82 : 181,748,252.12 = 72,974,628.73 : x
  2. Step 2: Convert to fraction form
    131,693,544.82/181,748,252.12 = 72,974,628.73/x
  3. Step 3: Cross multiply
    131,693,544.82x = 181,748,252.12 × 72,974,628.73
  4. Step 4: Simplify right side
    131,693,544.82x = 13,263,011,220,645,748
  5. Step 5: Solve for x
    x = 13,263,011,220,645,748/131,693,544.82
  6. Step 6: Final answer
    x = 100,711,171.82

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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.