Home / 109,636.47-151,302.68-61,891.47

Finding the Fourth Proportional to 109,636.47, 151,302.68 and 61,891.47

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Solution

The fourth proportional to 109,636.47, 151,302.68 and 61,891.47 is: 85,412.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,636.47 : 151,302.68 = 61,891.47 : x
  2. Step 2: Convert to fraction form
    109,636.47/151,302.68 = 61,891.47/x
  3. Step 3: Cross multiply
    109,636.47x = 151,302.68 × 61,891.47
  4. Step 4: Simplify right side
    109,636.47x = 9,364,344,970.68
  5. Step 5: Solve for x
    x = 9,364,344,970.68/109,636.47
  6. Step 6: Final answer
    x = 85,412.68

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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.