Home / 103,610.39-142,982.55-61,171.65

Finding the Fourth Proportional to 103,610.39, 142,982.55 and 61,171.65

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Solution

The fourth proportional to 103,610.39, 142,982.55 and 61,171.65 is: 84,417.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,610.39 : 142,982.55 = 61,171.65 : x
  2. Step 2: Convert to fraction form
    103,610.39/142,982.55 = 61,171.65/x
  3. Step 3: Cross multiply
    103,610.39x = 142,982.55 × 61,171.65
  4. Step 4: Simplify right side
    103,610.39x = 8,746,478,504.71
  5. Step 5: Solve for x
    x = 8,746,478,504.71/103,610.39
  6. Step 6: Final answer
    x = 84,417.01

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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.