Home / 105,165,789.45-157,748,472.15-98,766,133.55

Finding the Fourth Proportional to 105,165,789.45, 157,748,472.15 and 98,766,133.55

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Solution

The fourth proportional to 105,165,789.45, 157,748,472.15 and 98,766,133.55 is: 148,149,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,165,789.45 : 157,748,472.15 = 98,766,133.55 : x
  2. Step 2: Convert to fraction form
    105,165,789.45/157,748,472.15 = 98,766,133.55/x
  3. Step 3: Cross multiply
    105,165,789.45x = 157,748,472.15 × 98,766,133.55
  4. Step 4: Simplify right side
    105,165,789.45x = 15,580,206,667,675,356
  5. Step 5: Solve for x
    x = 15,580,206,667,675,356/105,165,789.45
  6. Step 6: Final answer
    x = 148,149,001.20

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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.