Home / 102,501.48-153,660.84-55,142.04

Finding the Fourth Proportional to 102,501.48, 153,660.84 and 55,142.04

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Solution

The fourth proportional to 102,501.48, 153,660.84 and 55,142.04 is: 82,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,501.48 : 153,660.84 = 55,142.04 : x
  2. Step 2: Convert to fraction form
    102,501.48/153,660.84 = 55,142.04/x
  3. Step 3: Cross multiply
    102,501.48x = 153,660.84 × 55,142.04
  4. Step 4: Simplify right side
    102,501.48x = 8,473,172,185.71
  5. Step 5: Solve for x
    x = 8,473,172,185.71/102,501.48
  6. Step 6: Final answer
    x = 82,663.90

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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.