Home / 140,140.60-193,390.38-76,479.16

Finding the Fourth Proportional to 140,140.60, 193,390.38 and 76,479.16

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Solution

The fourth proportional to 140,140.60, 193,390.38 and 76,479.16 is: 105,539.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,140.60 : 193,390.38 = 76,479.16 : x
  2. Step 2: Convert to fraction form
    140,140.60/193,390.38 = 76,479.16/x
  3. Step 3: Cross multiply
    140,140.60x = 193,390.38 × 76,479.16
  4. Step 4: Simplify right side
    140,140.60x = 14,790,333,814.48
  5. Step 5: Solve for x
    x = 14,790,333,814.48/140,140.60
  6. Step 6: Final answer
    x = 105,539.25

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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.