Home / 108,451.40-162,394.13-87,275.77

Finding the Fourth Proportional to 108,451.40, 162,394.13 and 87,275.77

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Solution

The fourth proportional to 108,451.40, 162,394.13 and 87,275.77 is: 130,685.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,451.40 : 162,394.13 = 87,275.77 : x
  2. Step 2: Convert to fraction form
    108,451.40/162,394.13 = 87,275.77/x
  3. Step 3: Cross multiply
    108,451.40x = 162,394.13 × 87,275.77
  4. Step 4: Simplify right side
    108,451.40x = 14,173,072,551.43
  5. Step 5: Solve for x
    x = 14,173,072,551.43/108,451.40
  6. Step 6: Final answer
    x = 130,685.94

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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.