Home / 140,080.39-193,310.53-76,417.74

Finding the Fourth Proportional to 140,080.39, 193,310.53 and 76,417.74

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Solution

The fourth proportional to 140,080.39, 193,310.53 and 76,417.74 is: 105,456.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,080.39 : 193,310.53 = 76,417.74 : x
  2. Step 2: Convert to fraction form
    140,080.39/193,310.53 = 76,417.74/x
  3. Step 3: Cross multiply
    140,080.39x = 193,310.53 × 76,417.74
  4. Step 4: Simplify right side
    140,080.39x = 14,772,353,629.76
  5. Step 5: Solve for x
    x = 14,772,353,629.76/140,080.39
  6. Step 6: Final answer
    x = 105,456.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.