Home / 108,509.28-162,426.96-70,507.68

Finding the Fourth Proportional to 108,509.28, 162,426.96 and 70,507.68

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Solution

The fourth proportional to 108,509.28, 162,426.96 and 70,507.68 is: 105,542.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,509.28 : 162,426.96 = 70,507.68 : x
  2. Step 2: Convert to fraction form
    108,509.28/162,426.96 = 70,507.68/x
  3. Step 3: Cross multiply
    108,509.28x = 162,426.96 × 70,507.68
  4. Step 4: Simplify right side
    108,509.28x = 11,452,348,119.05
  5. Step 5: Solve for x
    x = 11,452,348,119.05/108,509.28
  6. Step 6: Final answer
    x = 105,542.57

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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.