Home / 115,208.76-172,807.38-45,100.92

Finding the Fourth Proportional to 115,208.76, 172,807.38 and 45,100.92

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Solution

The fourth proportional to 115,208.76, 172,807.38 and 45,100.92 is: 67,649.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,208.76 : 172,807.38 = 45,100.92 : x
  2. Step 2: Convert to fraction form
    115,208.76/172,807.38 = 45,100.92/x
  3. Step 3: Cross multiply
    115,208.76x = 172,807.38 × 45,100.92
  4. Step 4: Simplify right side
    115,208.76x = 7,793,771,820.79
  5. Step 5: Solve for x
    x = 7,793,771,820.79/115,208.76
  6. Step 6: Final answer
    x = 67,649.13

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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.