Home / 124,751.02-172,232.68-81,185.08

Finding the Fourth Proportional to 124,751.02, 172,232.68 and 81,185.08

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Solution

The fourth proportional to 124,751.02, 172,232.68 and 81,185.08 is: 112,085.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,751.02 : 172,232.68 = 81,185.08 : x
  2. Step 2: Convert to fraction form
    124,751.02/172,232.68 = 81,185.08/x
  3. Step 3: Cross multiply
    124,751.02x = 172,232.68 × 81,185.08
  4. Step 4: Simplify right side
    124,751.02x = 13,982,723,904.41
  5. Step 5: Solve for x
    x = 13,982,723,904.41/124,751.02
  6. Step 6: Final answer
    x = 112,085.05

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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.