Home / 107,781.81-148,742.60-62,459.88

Finding the Fourth Proportional to 107,781.81, 148,742.60 and 62,459.88

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Solution

The fourth proportional to 107,781.81, 148,742.60 and 62,459.88 is: 86,196.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,781.81 : 148,742.60 = 62,459.88 : x
  2. Step 2: Convert to fraction form
    107,781.81/148,742.60 = 62,459.88/x
  3. Step 3: Cross multiply
    107,781.81x = 148,742.60 × 62,459.88
  4. Step 4: Simplify right side
    107,781.81x = 9,290,444,946.89
  5. Step 5: Solve for x
    x = 9,290,444,946.89/107,781.81
  6. Step 6: Final answer
    x = 86,196.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.