Home / 109,681.48-151,360.14-61,933.88

Finding the Fourth Proportional to 109,681.48, 151,360.14 and 61,933.88

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Solution

The fourth proportional to 109,681.48, 151,360.14 and 61,933.88 is: 85,468.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,681.48 : 151,360.14 = 61,933.88 : x
  2. Step 2: Convert to fraction form
    109,681.48/151,360.14 = 61,933.88/x
  3. Step 3: Cross multiply
    109,681.48x = 151,360.14 × 61,933.88
  4. Step 4: Simplify right side
    109,681.48x = 9,374,320,747.54
  5. Step 5: Solve for x
    x = 9,374,320,747.54/109,681.48
  6. Step 6: Final answer
    x = 85,468.58

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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.