Home / 124,837.53-172,278.84-75,779.73

Finding the Fourth Proportional to 124,837.53, 172,278.84 and 75,779.73

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Solution

The fourth proportional to 124,837.53, 172,278.84 and 75,779.73 is: 104,577.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,837.53 : 172,278.84 = 75,779.73 : x
  2. Step 2: Convert to fraction form
    124,837.53/172,278.84 = 75,779.73/x
  3. Step 3: Cross multiply
    124,837.53x = 172,278.84 × 75,779.73
  4. Step 4: Simplify right side
    124,837.53x = 13,055,243,979.91
  5. Step 5: Solve for x
    x = 13,055,243,979.91/124,837.53
  6. Step 6: Final answer
    x = 104,577.88

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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.