Home / 121,508.10-182,262.15-84,110.40

Finding the Fourth Proportional to 121,508.10, 182,262.15 and 84,110.40

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Solution

The fourth proportional to 121,508.10, 182,262.15 and 84,110.40 is: 126,165.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,508.10 : 182,262.15 = 84,110.40 : x
  2. Step 2: Convert to fraction form
    121,508.10/182,262.15 = 84,110.40/x
  3. Step 3: Cross multiply
    121,508.10x = 182,262.15 × 84,110.40
  4. Step 4: Simplify right side
    121,508.10x = 15,330,142,341.36
  5. Step 5: Solve for x
    x = 15,330,142,341.36/121,508.10
  6. Step 6: Final answer
    x = 126,165.60

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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.