Home / 109,487.15-151,097.43-61,739.47

Finding the Fourth Proportional to 109,487.15, 151,097.43 and 61,739.47

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Solution

The fourth proportional to 109,487.15, 151,097.43 and 61,739.47 is: 85,203.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,487.15 : 151,097.43 = 61,739.47 : x
  2. Step 2: Convert to fraction form
    109,487.15/151,097.43 = 61,739.47/x
  3. Step 3: Cross multiply
    109,487.15x = 151,097.43 × 61,739.47
  4. Step 4: Simplify right side
    109,487.15x = 9,328,675,246.56
  5. Step 5: Solve for x
    x = 9,328,675,246.56/109,487.15
  6. Step 6: Final answer
    x = 85,203.38

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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.