Home / 124,989.24-172,521.36-71,303.52

Finding the Fourth Proportional to 124,989.24, 172,521.36 and 71,303.52

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Solution

The fourth proportional to 124,989.24, 172,521.36 and 71,303.52 is: 98,419.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,989.24 : 172,521.36 = 71,303.52 : x
  2. Step 2: Convert to fraction form
    124,989.24/172,521.36 = 71,303.52/x
  3. Step 3: Cross multiply
    124,989.24x = 172,521.36 × 71,303.52
  4. Step 4: Simplify right side
    124,989.24x = 12,301,380,243.19
  5. Step 5: Solve for x
    x = 12,301,380,243.19/124,989.24
  6. Step 6: Final answer
    x = 98,419.51

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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.