Home / 140,305.20-193,621.13-75,774.45

Finding the Fourth Proportional to 140,305.20, 193,621.13 and 75,774.45

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Solution

The fourth proportional to 140,305.20, 193,621.13 and 75,774.45 is: 104,568.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,305.20 : 193,621.13 = 75,774.45 : x
  2. Step 2: Convert to fraction form
    140,305.20/193,621.13 = 75,774.45/x
  3. Step 3: Cross multiply
    140,305.20x = 193,621.13 × 75,774.45
  4. Step 4: Simplify right side
    140,305.20x = 14,671,534,828.19
  5. Step 5: Solve for x
    x = 14,671,534,828.19/140,305.20
  6. Step 6: Final answer
    x = 104,568.72

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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.