Home / 111,578.77-153,934.18-71,282.08

Finding the Fourth Proportional to 111,578.77, 153,934.18 and 71,282.08

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Solution

The fourth proportional to 111,578.77, 153,934.18 and 71,282.08 is: 98,340.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,578.77 : 153,934.18 = 71,282.08 : x
  2. Step 2: Convert to fraction form
    111,578.77/153,934.18 = 71,282.08/x
  3. Step 3: Cross multiply
    111,578.77x = 153,934.18 × 71,282.08
  4. Step 4: Simplify right side
    111,578.77x = 10,972,748,533.49
  5. Step 5: Solve for x
    x = 10,972,748,533.49/111,578.77
  6. Step 6: Final answer
    x = 98,340.83

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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.