Home / 157,447.16-235,127.11-138,370.04

Finding the Fourth Proportional to 157,447.16, 235,127.11 and 138,370.04

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Solution

The fourth proportional to 157,447.16, 235,127.11 and 138,370.04 is: 206,637.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,447.16 : 235,127.11 = 138,370.04 : x
  2. Step 2: Convert to fraction form
    157,447.16/235,127.11 = 138,370.04/x
  3. Step 3: Cross multiply
    157,447.16x = 235,127.11 × 138,370.04
  4. Step 4: Simplify right side
    157,447.16x = 32,534,547,615.78
  5. Step 5: Solve for x
    x = 32,534,547,615.78/157,447.16
  6. Step 6: Final answer
    x = 206,637.88

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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.