Home / 131,521.32-181,511.28-74,950.92

Finding the Fourth Proportional to 131,521.32, 181,511.28 and 74,950.92

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Solution

The fourth proportional to 131,521.32, 181,511.28 and 74,950.92 is: 103,439.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,521.32 : 181,511.28 = 74,950.92 : x
  2. Step 2: Convert to fraction form
    131,521.32/181,511.28 = 74,950.92/x
  3. Step 3: Cross multiply
    131,521.32x = 181,511.28 × 74,950.92
  4. Step 4: Simplify right side
    131,521.32x = 13,604,437,426.38
  5. Step 5: Solve for x
    x = 13,604,437,426.38/131,521.32
  6. Step 6: Final answer
    x = 103,439.03

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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.