Home / 121,388.20-181,995.90-46,479.40

Finding the Fourth Proportional to 121,388.20, 181,995.90 and 46,479.40

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Solution

The fourth proportional to 121,388.20, 181,995.90 and 46,479.40 is: 69,686.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,388.20 : 181,995.90 = 46,479.40 : x
  2. Step 2: Convert to fraction form
    121,388.20/181,995.90 = 46,479.40/x
  3. Step 3: Cross multiply
    121,388.20x = 181,995.90 × 46,479.40
  4. Step 4: Simplify right side
    121,388.20x = 8,459,060,234.46
  5. Step 5: Solve for x
    x = 8,459,060,234.46/121,388.20
  6. Step 6: Final answer
    x = 69,686.02

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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.