Home / 140,065.08-193,289.13-76,402.32

Finding the Fourth Proportional to 140,065.08, 193,289.13 and 76,402.32

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Solution

The fourth proportional to 140,065.08, 193,289.13 and 76,402.32 is: 105,434.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,065.08 : 193,289.13 = 76,402.32 : x
  2. Step 2: Convert to fraction form
    140,065.08/193,289.13 = 76,402.32/x
  3. Step 3: Cross multiply
    140,065.08x = 193,289.13 × 76,402.32
  4. Step 4: Simplify right side
    140,065.08x = 14,767,737,962.78
  5. Step 5: Solve for x
    x = 14,767,737,962.78/140,065.08
  6. Step 6: Final answer
    x = 105,434.83

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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.