Home / 105,885.76-158,848.08-39,371.80

Finding the Fourth Proportional to 105,885.76, 158,848.08 and 39,371.80

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Solution

The fourth proportional to 105,885.76, 158,848.08 and 39,371.80 is: 59,064.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,885.76 : 158,848.08 = 39,371.80 : x
  2. Step 2: Convert to fraction form
    105,885.76/158,848.08 = 39,371.80/x
  3. Step 3: Cross multiply
    105,885.76x = 158,848.08 × 39,371.80
  4. Step 4: Simplify right side
    105,885.76x = 6,254,134,836.14
  5. Step 5: Solve for x
    x = 6,254,134,836.14/105,885.76
  6. Step 6: Final answer
    x = 59,064.93

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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.