Home / 121,830.10-182,302.28-100,572.46

Finding the Fourth Proportional to 121,830.10, 182,302.28 and 100,572.46

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Solution

The fourth proportional to 121,830.10, 182,302.28 and 100,572.46 is: 150,493.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,830.10 : 182,302.28 = 100,572.46 : x
  2. Step 2: Convert to fraction form
    121,830.10/182,302.28 = 100,572.46/x
  3. Step 3: Cross multiply
    121,830.10x = 182,302.28 × 100,572.46
  4. Step 4: Simplify right side
    121,830.10x = 18,334,588,763.21
  5. Step 5: Solve for x
    x = 18,334,588,763.21/121,830.10
  6. Step 6: Final answer
    x = 150,493.09

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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.