Home / 157,470.16-235,161.42-138,393.04

Finding the Fourth Proportional to 157,470.16, 235,161.42 and 138,393.04

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Solution

The fourth proportional to 157,470.16, 235,161.42 and 138,393.04 is: 206,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,470.16 : 235,161.42 = 138,393.04 : x
  2. Step 2: Convert to fraction form
    157,470.16/235,161.42 = 138,393.04/x
  3. Step 3: Cross multiply
    157,470.16x = 235,161.42 × 138,393.04
  4. Step 4: Simplify right side
    157,470.16x = 32,544,703,804.52
  5. Step 5: Solve for x
    x = 32,544,703,804.52/157,470.16
  6. Step 6: Final answer
    x = 206,672.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.