Home / 121,539.60-182,308.59-65,406.12

Finding the Fourth Proportional to 121,539.60, 182,308.59 and 65,406.12

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Solution

The fourth proportional to 121,539.60, 182,308.59 and 65,406.12 is: 98,108.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,539.60 : 182,308.59 = 65,406.12 : x
  2. Step 2: Convert to fraction form
    121,539.60/182,308.59 = 65,406.12/x
  3. Step 3: Cross multiply
    121,539.60x = 182,308.59 × 65,406.12
  4. Step 4: Simplify right side
    121,539.60x = 11,924,097,514.57
  5. Step 5: Solve for x
    x = 11,924,097,514.57/121,539.60
  6. Step 6: Final answer
    x = 98,108.74

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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.