Home / 130,434.20-195,359.70-112,938.20

Finding the Fourth Proportional to 130,434.20, 195,359.70 and 112,938.20

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Solution

The fourth proportional to 130,434.20, 195,359.70 and 112,938.20 is: 169,154.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,434.20 : 195,359.70 = 112,938.20 : x
  2. Step 2: Convert to fraction form
    130,434.20/195,359.70 = 112,938.20/x
  3. Step 3: Cross multiply
    130,434.20x = 195,359.70 × 112,938.20
  4. Step 4: Simplify right side
    130,434.20x = 22,063,572,870.54
  5. Step 5: Solve for x
    x = 22,063,572,870.54/130,434.20
  6. Step 6: Final answer
    x = 169,154.81

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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.