Home / 156,946.40-235,419.60-90,591.20

Finding the Fourth Proportional to 156,946.40, 235,419.60 and 90,591.20

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Solution

The fourth proportional to 156,946.40, 235,419.60 and 90,591.20 is: 135,886.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,946.40 : 235,419.60 = 90,591.20 : x
  2. Step 2: Convert to fraction form
    156,946.40/235,419.60 = 90,591.20/x
  3. Step 3: Cross multiply
    156,946.40x = 235,419.60 × 90,591.20
  4. Step 4: Simplify right side
    156,946.40x = 21,326,944,067.52
  5. Step 5: Solve for x
    x = 21,326,944,067.52/156,946.40
  6. Step 6: Final answer
    x = 135,886.80

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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.