Home / 75,902.86-114,103.38-70,422.40

Finding the Fourth Proportional to 75,902.86, 114,103.38 and 70,422.40

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Solution

The fourth proportional to 75,902.86, 114,103.38 and 70,422.40 is: 105,864.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,902.86 : 114,103.38 = 70,422.40 : x
  2. Step 2: Convert to fraction form
    75,902.86/114,103.38 = 70,422.40/x
  3. Step 3: Cross multiply
    75,902.86x = 114,103.38 × 70,422.40
  4. Step 4: Simplify right side
    75,902.86x = 8,035,433,867.71
  5. Step 5: Solve for x
    x = 8,035,433,867.71/75,902.86
  6. Step 6: Final answer
    x = 105,864.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.