Home / 157,368.10-236,121.92-82,470.43

Finding the Fourth Proportional to 157,368.10, 236,121.92 and 82,470.43

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Solution

The fourth proportional to 157,368.10, 236,121.92 and 82,470.43 is: 123,742.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,368.10 : 236,121.92 = 82,470.43 : x
  2. Step 2: Convert to fraction form
    157,368.10/236,121.92 = 82,470.43/x
  3. Step 3: Cross multiply
    157,368.10x = 236,121.92 × 82,470.43
  4. Step 4: Simplify right side
    157,368.10x = 19,473,075,862.47
  5. Step 5: Solve for x
    x = 19,473,075,862.47/157,368.10
  6. Step 6: Final answer
    x = 123,742.21

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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.