Home / 158,139.60-237,209.40-145,309.20

Finding the Fourth Proportional to 158,139.60, 237,209.40 and 145,309.20

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Solution

The fourth proportional to 158,139.60, 237,209.40 and 145,309.20 is: 217,963.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,139.60 : 237,209.40 = 145,309.20 : x
  2. Step 2: Convert to fraction form
    158,139.60/237,209.40 = 145,309.20/x
  3. Step 3: Cross multiply
    158,139.60x = 237,209.40 × 145,309.20
  4. Step 4: Simplify right side
    158,139.60x = 34,468,708,146.48
  5. Step 5: Solve for x
    x = 34,468,708,146.48/158,139.60
  6. Step 6: Final answer
    x = 217,963.80

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1.5x scale

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.