Home / 112,492.75-155,240-62,191.75

Finding the Fourth Proportional to 112,492.75, 155,240 and 62,191.75

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Solution

The fourth proportional to 112,492.75, 155,240 and 62,191.75 is: 85,824.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,492.75 : 155,240 = 62,191.75 : x
  2. Step 2: Convert to fraction form
    112,492.75/155,240 = 62,191.75/x
  3. Step 3: Cross multiply
    112,492.75x = 155,240 × 62,191.75
  4. Step 4: Simplify right side
    112,492.75x = 9,654,647,270
  5. Step 5: Solve for x
    x = 9,654,647,270/112,492.75
  6. Step 6: Final answer
    x = 85,824.62

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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.