Home / 108,538.30-162,807.45-98,688.70

Finding the Fourth Proportional to 108,538.30, 162,807.45 and 98,688.70

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Solution

The fourth proportional to 108,538.30, 162,807.45 and 98,688.70 is: 148,033.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,538.30 : 162,807.45 = 98,688.70 : x
  2. Step 2: Convert to fraction form
    108,538.30/162,807.45 = 98,688.70/x
  3. Step 3: Cross multiply
    108,538.30x = 162,807.45 × 98,688.70
  4. Step 4: Simplify right side
    108,538.30x = 16,067,255,590.82
  5. Step 5: Solve for x
    x = 16,067,255,590.82/108,538.30
  6. Step 6: Final answer
    x = 148,033.05

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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.