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Finding the Fourth Proportional to 159,646.77, 220,344.47 and 91,710.33

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Solution

The fourth proportional to 159,646.77, 220,344.47 and 91,710.33 is: 126,578.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,646.77 : 220,344.47 = 91,710.33 : x
  2. Step 2: Convert to fraction form
    159,646.77/220,344.47 = 91,710.33/x
  3. Step 3: Cross multiply
    159,646.77x = 220,344.47 × 91,710.33
  4. Step 4: Simplify right side
    159,646.77x = 20,207,863,598.82
  5. Step 5: Solve for x
    x = 20,207,863,598.82/159,646.77
  6. Step 6: Final answer
    x = 126,578.59

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1.5x scale

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.