Home / 121,430.55-182,012.18-42,504.15

Finding the Fourth Proportional to 121,430.55, 182,012.18 and 42,504.15

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Solution

The fourth proportional to 121,430.55, 182,012.18 and 42,504.15 is: 63,709.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,430.55 : 182,012.18 = 42,504.15 : x
  2. Step 2: Convert to fraction form
    121,430.55/182,012.18 = 42,504.15/x
  3. Step 3: Cross multiply
    121,430.55x = 182,012.18 × 42,504.15
  4. Step 4: Simplify right side
    121,430.55x = 7,736,272,788.03
  5. Step 5: Solve for x
    x = 7,736,272,788.03/121,430.55
  6. Step 6: Final answer
    x = 63,709.44

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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.