Home / 125,064.12-187,407.84-75,089.54

Finding the Fourth Proportional to 125,064.12, 187,407.84 and 75,089.54

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Solution

The fourth proportional to 125,064.12, 187,407.84 and 75,089.54 is: 112,521.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,064.12 : 187,407.84 = 75,089.54 : x
  2. Step 2: Convert to fraction form
    125,064.12/187,407.84 = 75,089.54/x
  3. Step 3: Cross multiply
    125,064.12x = 187,407.84 × 75,089.54
  4. Step 4: Simplify right side
    125,064.12x = 14,072,368,497.99
  5. Step 5: Solve for x
    x = 14,072,368,497.99/125,064.12
  6. Step 6: Final answer
    x = 112,521.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.