Home / 87,818.40-131,727.60-70,322.40

Finding the Fourth Proportional to 87,818.40, 131,727.60 and 70,322.40

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Solution

The fourth proportional to 87,818.40, 131,727.60 and 70,322.40 is: 105,483.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,818.40 : 131,727.60 = 70,322.40 : x
  2. Step 2: Convert to fraction form
    87,818.40/131,727.60 = 70,322.40/x
  3. Step 3: Cross multiply
    87,818.40x = 131,727.60 × 70,322.40
  4. Step 4: Simplify right side
    87,818.40x = 9,263,400,978.24
  5. Step 5: Solve for x
    x = 9,263,400,978.24/87,818.40
  6. Step 6: Final answer
    x = 105,483.60

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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.