Home / 112,240.57-154,949.13-86,689.58

Finding the Fourth Proportional to 112,240.57, 154,949.13 and 86,689.58

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Solution

The fourth proportional to 112,240.57, 154,949.13 and 86,689.58 is: 119,675.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,240.57 : 154,949.13 = 86,689.58 : x
  2. Step 2: Convert to fraction form
    112,240.57/154,949.13 = 86,689.58/x
  3. Step 3: Cross multiply
    112,240.57x = 154,949.13 × 86,689.58
  4. Step 4: Simplify right side
    112,240.57x = 13,432,475,001.07
  5. Step 5: Solve for x
    x = 13,432,475,001.07/112,240.57
  6. Step 6: Final answer
    x = 119,675.76

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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.