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Finding the Fourth Proportional to 125,021.53, 187,482.85 and 40,760.97

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Solution

The fourth proportional to 125,021.53, 187,482.85 and 40,760.97 is: 61,125.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,021.53 : 187,482.85 = 40,760.97 : x
  2. Step 2: Convert to fraction form
    125,021.53/187,482.85 = 40,760.97/x
  3. Step 3: Cross multiply
    125,021.53x = 187,482.85 × 40,760.97
  4. Step 4: Simplify right side
    125,021.53x = 7,641,983,303.27
  5. Step 5: Solve for x
    x = 7,641,983,303.27/125,021.53
  6. Step 6: Final answer
    x = 61,125.34

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1.5x scale

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.