Home / 121,416.20-182,124.30-38,310.20

Finding the Fourth Proportional to 121,416.20, 182,124.30 and 38,310.20

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Solution

The fourth proportional to 121,416.20, 182,124.30 and 38,310.20 is: 57,465.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,416.20 : 182,124.30 = 38,310.20 : x
  2. Step 2: Convert to fraction form
    121,416.20/182,124.30 = 38,310.20/x
  3. Step 3: Cross multiply
    121,416.20x = 182,124.30 × 38,310.20
  4. Step 4: Simplify right side
    121,416.20x = 6,977,218,357.86
  5. Step 5: Solve for x
    x = 6,977,218,357.86/121,416.20
  6. Step 6: Final answer
    x = 57,465.30

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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.