Home / 112,674.70-155,492.92-61,686.57

Finding the Fourth Proportional to 112,674.70, 155,492.92 and 61,686.57

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Solution

The fourth proportional to 112,674.70, 155,492.92 and 61,686.57 is: 85,128.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,674.70 : 155,492.92 = 61,686.57 : x
  2. Step 2: Convert to fraction form
    112,674.70/155,492.92 = 61,686.57/x
  3. Step 3: Cross multiply
    112,674.70x = 155,492.92 × 61,686.57
  4. Step 4: Simplify right side
    112,674.70x = 9,591,825,554.29
  5. Step 5: Solve for x
    x = 9,591,825,554.29/112,674.70
  6. Step 6: Final answer
    x = 85,128.48

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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.