Home / 112,821.76-155,586.16-67,492.20

Finding the Fourth Proportional to 112,821.76, 155,586.16 and 67,492.20

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Solution

The fourth proportional to 112,821.76, 155,586.16 and 67,492.20 is: 93,074.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,821.76 : 155,586.16 = 67,492.20 : x
  2. Step 2: Convert to fraction form
    112,821.76/155,586.16 = 67,492.20/x
  3. Step 3: Cross multiply
    112,821.76x = 155,586.16 × 67,492.20
  4. Step 4: Simplify right side
    112,821.76x = 10,500,852,227.95
  5. Step 5: Solve for x
    x = 10,500,852,227.95/112,821.76
  6. Step 6: Final answer
    x = 93,074.71

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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.