Home / 124,986.18-172,561.41-111,534.31

Finding the Fourth Proportional to 124,986.18, 172,561.41 and 111,534.31

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Solution

The fourth proportional to 124,986.18, 172,561.41 and 111,534.31 is: 153,989.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,986.18 : 172,561.41 = 111,534.31 : x
  2. Step 2: Convert to fraction form
    124,986.18/172,561.41 = 111,534.31/x
  3. Step 3: Cross multiply
    124,986.18x = 172,561.41 × 111,534.31
  4. Step 4: Simplify right side
    124,986.18x = 19,246,517,365.57
  5. Step 5: Solve for x
    x = 19,246,517,365.57/124,986.18
  6. Step 6: Final answer
    x = 153,989.16

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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.