Home / 108,210.40-162,315.60-100,337.20

Finding the Fourth Proportional to 108,210.40, 162,315.60 and 100,337.20

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Solution

The fourth proportional to 108,210.40, 162,315.60 and 100,337.20 is: 150,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,210.40 : 162,315.60 = 100,337.20 : x
  2. Step 2: Convert to fraction form
    108,210.40/162,315.60 = 100,337.20/x
  3. Step 3: Cross multiply
    108,210.40x = 162,315.60 × 100,337.20
  4. Step 4: Simplify right side
    108,210.40x = 16,286,292,820.32
  5. Step 5: Solve for x
    x = 16,286,292,820.32/108,210.40
  6. Step 6: Final answer
    x = 150,505.80

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1.5x scale

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.