Home / 121,138.76-181,695.36-32,401.22

Finding the Fourth Proportional to 121,138.76, 181,695.36 and 32,401.22

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Solution

The fourth proportional to 121,138.76, 181,695.36 and 32,401.22 is: 48,598.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,138.76 : 181,695.36 = 32,401.22 : x
  2. Step 2: Convert to fraction form
    121,138.76/181,695.36 = 32,401.22/x
  3. Step 3: Cross multiply
    121,138.76x = 181,695.36 × 32,401.22
  4. Step 4: Simplify right side
    121,138.76x = 5,887,151,332.34
  5. Step 5: Solve for x
    x = 5,887,151,332.34/121,138.76
  6. Step 6: Final answer
    x = 48,598.41

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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.