Home / 124,718.23-172,111.11-67,357.57

Finding the Fourth Proportional to 124,718.23, 172,111.11 and 67,357.57

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Solution

The fourth proportional to 124,718.23, 172,111.11 and 67,357.57 is: 92,953.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,718.23 : 172,111.11 = 67,357.57 : x
  2. Step 2: Convert to fraction form
    124,718.23/172,111.11 = 67,357.57/x
  3. Step 3: Cross multiply
    124,718.23x = 172,111.11 × 67,357.57
  4. Step 4: Simplify right side
    124,718.23x = 11,592,986,139.60
  5. Step 5: Solve for x
    x = 11,592,986,139.60/124,718.23
  6. Step 6: Final answer
    x = 92,953.42

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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.