Home / 108,108.19-162,162.85-70,903.86

Finding the Fourth Proportional to 108,108.19, 162,162.85 and 70,903.86

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Solution

The fourth proportional to 108,108.19, 162,162.85 and 70,903.86 is: 106,356.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,108.19 : 162,162.85 = 70,903.86 : x
  2. Step 2: Convert to fraction form
    108,108.19/162,162.85 = 70,903.86/x
  3. Step 3: Cross multiply
    108,108.19x = 162,162.85 × 70,903.86
  4. Step 4: Simplify right side
    108,108.19x = 11,497,971,560.59
  5. Step 5: Solve for x
    x = 11,497,971,560.59/108,108.19
  6. Step 6: Final answer
    x = 106,356.16

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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.