Home / 112,151.85-154,751.79-66,828.70

Finding the Fourth Proportional to 112,151.85, 154,751.79 and 66,828.70

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Solution

The fourth proportional to 112,151.85, 154,751.79 and 66,828.70 is: 92,213.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,151.85 : 154,751.79 = 66,828.70 : x
  2. Step 2: Convert to fraction form
    112,151.85/154,751.79 = 66,828.70/x
  3. Step 3: Cross multiply
    112,151.85x = 154,751.79 × 66,828.70
  4. Step 4: Simplify right side
    112,151.85x = 10,341,860,948.37
  5. Step 5: Solve for x
    x = 10,341,860,948.37/112,151.85
  6. Step 6: Final answer
    x = 92,213.02

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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.