Home / 121,429.60-182,144.40-112,098.40

Finding the Fourth Proportional to 121,429.60, 182,144.40 and 112,098.40

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Solution

The fourth proportional to 121,429.60, 182,144.40 and 112,098.40 is: 168,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,429.60 : 182,144.40 = 112,098.40 : x
  2. Step 2: Convert to fraction form
    121,429.60/182,144.40 = 112,098.40/x
  3. Step 3: Cross multiply
    121,429.60x = 182,144.40 × 112,098.40
  4. Step 4: Simplify right side
    121,429.60x = 20,418,095,808.96
  5. Step 5: Solve for x
    x = 20,418,095,808.96/121,429.60
  6. Step 6: Final answer
    x = 168,147.60

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1.5x scale

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.