Home / 140,338.13-193,609.27-103,632.29

Finding the Fourth Proportional to 140,338.13, 193,609.27 and 103,632.29

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Solution

The fourth proportional to 140,338.13, 193,609.27 and 103,632.29 is: 142,970.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,338.13 : 193,609.27 = 103,632.29 : x
  2. Step 2: Convert to fraction form
    140,338.13/193,609.27 = 103,632.29/x
  3. Step 3: Cross multiply
    140,338.13x = 193,609.27 × 103,632.29
  4. Step 4: Simplify right side
    140,338.13x = 20,064,172,015.33
  5. Step 5: Solve for x
    x = 20,064,172,015.33/140,338.13
  6. Step 6: Final answer
    x = 142,970.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.