Home / 105,731.55-158,594.28-39,170.20

Finding the Fourth Proportional to 105,731.55, 158,594.28 and 39,170.20

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Solution

The fourth proportional to 105,731.55, 158,594.28 and 39,170.20 is: 58,754.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,731.55 : 158,594.28 = 39,170.20 : x
  2. Step 2: Convert to fraction form
    105,731.55/158,594.28 = 39,170.20/x
  3. Step 3: Cross multiply
    105,731.55x = 158,594.28 × 39,170.20
  4. Step 4: Simplify right side
    105,731.55x = 6,212,169,666.46
  5. Step 5: Solve for x
    x = 6,212,169,666.46/105,731.55
  6. Step 6: Final answer
    x = 58,754.17

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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.