Home / 105,761.42-158,501.18-55,829.78

Finding the Fourth Proportional to 105,761.42, 158,501.18 and 55,829.78

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Solution

The fourth proportional to 105,761.42, 158,501.18 and 55,829.78 is: 83,670.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,761.42 : 158,501.18 = 55,829.78 : x
  2. Step 2: Convert to fraction form
    105,761.42/158,501.18 = 55,829.78/x
  3. Step 3: Cross multiply
    105,761.42x = 158,501.18 × 55,829.78
  4. Step 4: Simplify right side
    105,761.42x = 8,849,084,937.49
  5. Step 5: Solve for x
    x = 8,849,084,937.49/105,761.42
  6. Step 6: Final answer
    x = 83,670.26

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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.