Home / 107,221.61-147,962.97-61,898.06

Finding the Fourth Proportional to 107,221.61, 147,962.97 and 61,898.06

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Solution

The fourth proportional to 107,221.61, 147,962.97 and 61,898.06 is: 85,417.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,221.61 : 147,962.97 = 61,898.06 : x
  2. Step 2: Convert to fraction form
    107,221.61/147,962.97 = 61,898.06/x
  3. Step 3: Cross multiply
    107,221.61x = 147,962.97 × 61,898.06
  4. Step 4: Simplify right side
    107,221.61x = 9,158,620,794.84
  5. Step 5: Solve for x
    x = 9,158,620,794.84/107,221.61
  6. Step 6: Final answer
    x = 85,417.68

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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.