Home / 121,264.35-181,890.38-46,378.76

Finding the Fourth Proportional to 121,264.35, 181,890.38 and 46,378.76

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Solution

The fourth proportional to 121,264.35, 181,890.38 and 46,378.76 is: 69,565.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,264.35 : 181,890.38 = 46,378.76 : x
  2. Step 2: Convert to fraction form
    121,264.35/181,890.38 = 46,378.76/x
  3. Step 3: Cross multiply
    121,264.35x = 181,890.38 × 46,378.76
  4. Step 4: Simplify right side
    121,264.35x = 8,435,849,138.98
  5. Step 5: Solve for x
    x = 8,435,849,138.98/121,264.35
  6. Step 6: Final answer
    x = 69,565.78

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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.