Home / 314,820.24-472,091.03-90,129.48

Finding the Fourth Proportional to 314,820.24, 472,091.03 and 90,129.48

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Solution

The fourth proportional to 314,820.24, 472,091.03 and 90,129.48 is: 135,154.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,820.24 : 472,091.03 = 90,129.48 : x
  2. Step 2: Convert to fraction form
    314,820.24/472,091.03 = 90,129.48/x
  3. Step 3: Cross multiply
    314,820.24x = 472,091.03 × 90,129.48
  4. Step 4: Simplify right side
    314,820.24x = 42,549,319,046.56
  5. Step 5: Solve for x
    x = 42,549,319,046.56/314,820.24
  6. Step 6: Final answer
    x = 135,154.33

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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.