Home / 105,141.20-157,772.28-58,390.16

Finding the Fourth Proportional to 105,141.20, 157,772.28 and 58,390.16

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Solution

The fourth proportional to 105,141.20, 157,772.28 and 58,390.16 is: 87,618.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,141.20 : 157,772.28 = 58,390.16 : x
  2. Step 2: Convert to fraction form
    105,141.20/157,772.28 = 58,390.16/x
  3. Step 3: Cross multiply
    105,141.20x = 157,772.28 × 58,390.16
  4. Step 4: Simplify right side
    105,141.20x = 9,212,348,672.76
  5. Step 5: Solve for x
    x = 9,212,348,672.76/105,141.20
  6. Step 6: Final answer
    x = 87,618.83

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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.