Home / 156,938.40-235,407.60-137,255.40

Finding the Fourth Proportional to 156,938.40, 235,407.60 and 137,255.40

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Solution

The fourth proportional to 156,938.40, 235,407.60 and 137,255.40 is: 205,883.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,938.40 : 235,407.60 = 137,255.40 : x
  2. Step 2: Convert to fraction form
    156,938.40/235,407.60 = 137,255.40/x
  3. Step 3: Cross multiply
    156,938.40x = 235,407.60 × 137,255.40
  4. Step 4: Simplify right side
    156,938.40x = 32,310,964,301.04
  5. Step 5: Solve for x
    x = 32,310,964,301.04/156,938.40
  6. Step 6: Final answer
    x = 205,883.10

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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.