Home / 127,403.20-190,891.96-89,901.28

Finding the Fourth Proportional to 127,403.20, 190,891.96 and 89,901.28

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Solution

The fourth proportional to 127,403.20, 190,891.96 and 89,901.28 is: 134,701.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,403.20 : 190,891.96 = 89,901.28 : x
  2. Step 2: Convert to fraction form
    127,403.20/190,891.96 = 89,901.28/x
  3. Step 3: Cross multiply
    127,403.20x = 190,891.96 × 89,901.28
  4. Step 4: Simplify right side
    127,403.20x = 17,161,431,545.71
  5. Step 5: Solve for x
    x = 17,161,431,545.71/127,403.20
  6. Step 6: Final answer
    x = 134,701.73

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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.