Home / 121,499.10-182,248.65-118,218.60

Finding the Fourth Proportional to 121,499.10, 182,248.65 and 118,218.60

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Solution

The fourth proportional to 121,499.10, 182,248.65 and 118,218.60 is: 177,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,499.10 : 182,248.65 = 118,218.60 : x
  2. Step 2: Convert to fraction form
    121,499.10/182,248.65 = 118,218.60/x
  3. Step 3: Cross multiply
    121,499.10x = 182,248.65 × 118,218.60
  4. Step 4: Simplify right side
    121,499.10x = 21,545,180,254.89
  5. Step 5: Solve for x
    x = 21,545,180,254.89/121,499.10
  6. Step 6: Final answer
    x = 177,327.90

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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.