Home / 140,064.60-193,288.83-76,402.40

Finding the Fourth Proportional to 140,064.60, 193,288.83 and 76,402.40

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Solution

The fourth proportional to 140,064.60, 193,288.83 and 76,402.40 is: 105,435.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,064.60 : 193,288.83 = 76,402.40 : x
  2. Step 2: Convert to fraction form
    140,064.60/193,288.83 = 76,402.40/x
  3. Step 3: Cross multiply
    140,064.60x = 193,288.83 × 76,402.40
  4. Step 4: Simplify right side
    140,064.60x = 14,767,729,538.75
  5. Step 5: Solve for x
    x = 14,767,729,538.75/140,064.60
  6. Step 6: Final answer
    x = 105,435.13

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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.