Home / 108,473.10-162,426.66-87,297.47

Finding the Fourth Proportional to 108,473.10, 162,426.66 and 87,297.47

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Solution

The fourth proportional to 108,473.10, 162,426.66 and 87,297.47 is: 130,718.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,473.10 : 162,426.66 = 87,297.47 : x
  2. Step 2: Convert to fraction form
    108,473.10/162,426.66 = 87,297.47/x
  3. Step 3: Cross multiply
    108,473.10x = 162,426.66 × 87,297.47
  4. Step 4: Simplify right side
    108,473.10x = 14,179,435,666.42
  5. Step 5: Solve for x
    x = 14,179,435,666.42/108,473.10
  6. Step 6: Final answer
    x = 130,718.45

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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.