Home / 102,278.26-141,141.37-99,260.20

Finding the Fourth Proportional to 102,278.26, 141,141.37 and 99,260.20

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Solution

The fourth proportional to 102,278.26, 141,141.37 and 99,260.20 is: 136,976.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,278.26 : 141,141.37 = 99,260.20 : x
  2. Step 2: Convert to fraction form
    102,278.26/141,141.37 = 99,260.20/x
  3. Step 3: Cross multiply
    102,278.26x = 141,141.37 × 99,260.20
  4. Step 4: Simplify right side
    102,278.26x = 14,009,720,614.47
  5. Step 5: Solve for x
    x = 14,009,720,614.47/102,278.26
  6. Step 6: Final answer
    x = 136,976.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.