Home / 156,948.40-235,422.60-90,593.20

Finding the Fourth Proportional to 156,948.40, 235,422.60 and 90,593.20

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Solution

The fourth proportional to 156,948.40, 235,422.60 and 90,593.20 is: 135,889.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,948.40 : 235,422.60 = 90,593.20 : x
  2. Step 2: Convert to fraction form
    156,948.40/235,422.60 = 90,593.20/x
  3. Step 3: Cross multiply
    156,948.40x = 235,422.60 × 90,593.20
  4. Step 4: Simplify right side
    156,948.40x = 21,327,686,686.32
  5. Step 5: Solve for x
    x = 21,327,686,686.32/156,948.40
  6. Step 6: Final answer
    x = 135,889.80

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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.