Home / 102,162.12-153,113.40-45,942.18

Finding the Fourth Proportional to 102,162.12, 153,113.40 and 45,942.18

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Solution

The fourth proportional to 102,162.12, 153,113.40 and 45,942.18 is: 68,854.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,162.12 : 153,113.40 = 45,942.18 : x
  2. Step 2: Convert to fraction form
    102,162.12/153,113.40 = 45,942.18/x
  3. Step 3: Cross multiply
    102,162.12x = 153,113.40 × 45,942.18
  4. Step 4: Simplify right side
    102,162.12x = 7,034,363,383.21
  5. Step 5: Solve for x
    x = 7,034,363,383.21/102,162.12
  6. Step 6: Final answer
    x = 68,854.91

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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.