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Finding the Fourth Proportional to 134,850.60, 202,275.90 and 87,611.40

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Solution

The fourth proportional to 134,850.60, 202,275.90 and 87,611.40 is: 131,417.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,850.60 : 202,275.90 = 87,611.40 : x
  2. Step 2: Convert to fraction form
    134,850.60/202,275.90 = 87,611.40/x
  3. Step 3: Cross multiply
    134,850.60x = 202,275.90 × 87,611.40
  4. Step 4: Simplify right side
    134,850.60x = 17,721,674,785.26
  5. Step 5: Solve for x
    x = 17,721,674,785.26/134,850.60
  6. Step 6: Final answer
    x = 131,417.10

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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.