Home / 107,811.20-148,768.05-62,503.40

Finding the Fourth Proportional to 107,811.20, 148,768.05 and 62,503.40

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Solution

The fourth proportional to 107,811.20, 148,768.05 and 62,503.40 is: 86,248.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,811.20 : 148,768.05 = 62,503.40 : x
  2. Step 2: Convert to fraction form
    107,811.20/148,768.05 = 62,503.40/x
  3. Step 3: Cross multiply
    107,811.20x = 148,768.05 × 62,503.40
  4. Step 4: Simplify right side
    107,811.20x = 9,298,508,936.37
  5. Step 5: Solve for x
    x = 9,298,508,936.37/107,811.20
  6. Step 6: Final answer
    x = 86,248.08

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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.