Home / 125,040.31-172,636.13-111,588.46

Finding the Fourth Proportional to 125,040.31, 172,636.13 and 111,588.46

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Solution

The fourth proportional to 125,040.31, 172,636.13 and 111,588.46 is: 154,063.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,040.31 : 172,636.13 = 111,588.46 : x
  2. Step 2: Convert to fraction form
    125,040.31/172,636.13 = 111,588.46/x
  3. Step 3: Cross multiply
    125,040.31x = 172,636.13 × 111,588.46
  4. Step 4: Simplify right side
    125,040.31x = 19,264,198,465.94
  5. Step 5: Solve for x
    x = 19,264,198,465.94/125,040.31
  6. Step 6: Final answer
    x = 154,063.91

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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.