Home / 135,585.59-187,088.47-75,156.21

Finding the Fourth Proportional to 135,585.59, 187,088.47 and 75,156.21

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Solution

The fourth proportional to 135,585.59, 187,088.47 and 75,156.21 is: 103,704.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,585.59 : 187,088.47 = 75,156.21 : x
  2. Step 2: Convert to fraction form
    135,585.59/187,088.47 = 75,156.21/x
  3. Step 3: Cross multiply
    135,585.59x = 187,088.47 × 75,156.21
  4. Step 4: Simplify right side
    135,585.59x = 14,060,860,853.59
  5. Step 5: Solve for x
    x = 14,060,860,853.59/135,585.59
  6. Step 6: Final answer
    x = 103,704.69

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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.