Home / 118,011.17-177,016.92-90,089.76

Finding the Fourth Proportional to 118,011.17, 177,016.92 and 90,089.76

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Solution

The fourth proportional to 118,011.17, 177,016.92 and 90,089.76 is: 135,134.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,011.17 : 177,016.92 = 90,089.76 : x
  2. Step 2: Convert to fraction form
    118,011.17/177,016.92 = 90,089.76/x
  3. Step 3: Cross multiply
    118,011.17x = 177,016.92 × 90,089.76
  4. Step 4: Simplify right side
    118,011.17x = 15,947,411,178.88
  5. Step 5: Solve for x
    x = 15,947,411,178.88/118,011.17
  6. Step 6: Final answer
    x = 135,134.76

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1.5x scale

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.