Home / 101,730.27-140,382.11-56,405.60

Finding the Fourth Proportional to 101,730.27, 140,382.11 and 56,405.60

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Solution

The fourth proportional to 101,730.27, 140,382.11 and 56,405.60 is: 77,836.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,730.27 : 140,382.11 = 56,405.60 : x
  2. Step 2: Convert to fraction form
    101,730.27/140,382.11 = 56,405.60/x
  3. Step 3: Cross multiply
    101,730.27x = 140,382.11 × 56,405.60
  4. Step 4: Simplify right side
    101,730.27x = 7,918,336,159.88
  5. Step 5: Solve for x
    x = 7,918,336,159.88/101,730.27
  6. Step 6: Final answer
    x = 77,836.58

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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.