Home / 105,840.76-158,761.02-82,484.68

Finding the Fourth Proportional to 105,840.76, 158,761.02 and 82,484.68

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Solution

The fourth proportional to 105,840.76, 158,761.02 and 82,484.68 is: 123,726.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,840.76 : 158,761.02 = 82,484.68 : x
  2. Step 2: Convert to fraction form
    105,840.76/158,761.02 = 82,484.68/x
  3. Step 3: Cross multiply
    105,840.76x = 158,761.02 × 82,484.68
  4. Step 4: Simplify right side
    105,840.76x = 13,095,351,931.17
  5. Step 5: Solve for x
    x = 13,095,351,931.17/105,840.76
  6. Step 6: Final answer
    x = 123,726.93

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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.