Home / 112,992.30-155,862.63-72,693.18

Finding the Fourth Proportional to 112,992.30, 155,862.63 and 72,693.18

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Solution

The fourth proportional to 112,992.30, 155,862.63 and 72,693.18 is: 100,273.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,992.30 : 155,862.63 = 72,693.18 : x
  2. Step 2: Convert to fraction form
    112,992.30/155,862.63 = 72,693.18/x
  3. Step 3: Cross multiply
    112,992.30x = 155,862.63 × 72,693.18
  4. Step 4: Simplify right side
    112,992.30x = 11,330,150,217.86
  5. Step 5: Solve for x
    x = 11,330,150,217.86/112,992.30
  6. Step 6: Final answer
    x = 100,273.65

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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.