Home / 140,352.12-193,596.30-83,731.32

Finding the Fourth Proportional to 140,352.12, 193,596.30 and 83,731.32

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Solution

The fourth proportional to 140,352.12, 193,596.30 and 83,731.32 is: 115,495.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,352.12 : 193,596.30 = 83,731.32 : x
  2. Step 2: Convert to fraction form
    140,352.12/193,596.30 = 83,731.32/x
  3. Step 3: Cross multiply
    140,352.12x = 193,596.30 × 83,731.32
  4. Step 4: Simplify right side
    140,352.12x = 16,210,073,746.12
  5. Step 5: Solve for x
    x = 16,210,073,746.12/140,352.12
  6. Step 6: Final answer
    x = 115,495.75

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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.