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Finding the Fourth Proportional to 135,510.96, 187,098.48 and 103,624.32

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Solution

The fourth proportional to 135,510.96, 187,098.48 and 103,624.32 is: 143,072.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,510.96 : 187,098.48 = 103,624.32 : x
  2. Step 2: Convert to fraction form
    135,510.96/187,098.48 = 103,624.32/x
  3. Step 3: Cross multiply
    135,510.96x = 187,098.48 × 103,624.32
  4. Step 4: Simplify right side
    135,510.96x = 19,387,952,763.03
  5. Step 5: Solve for x
    x = 19,387,952,763.03/135,510.96
  6. Step 6: Final answer
    x = 143,072.95

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1.5x scale

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.