Home / 108,629.20-162,943.80-99,006.40

Finding the Fourth Proportional to 108,629.20, 162,943.80 and 99,006.40

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Solution

The fourth proportional to 108,629.20, 162,943.80 and 99,006.40 is: 148,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,629.20 : 162,943.80 = 99,006.40 : x
  2. Step 2: Convert to fraction form
    108,629.20/162,943.80 = 99,006.40/x
  3. Step 3: Cross multiply
    108,629.20x = 162,943.80 × 99,006.40
  4. Step 4: Simplify right side
    108,629.20x = 16,132,479,040.32
  5. Step 5: Solve for x
    x = 16,132,479,040.32/108,629.20
  6. Step 6: Final answer
    x = 148,509.60

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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.