Home / 159,578.29-220,156.26-91,570.69

Finding the Fourth Proportional to 159,578.29, 220,156.26 and 91,570.69

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Solution

The fourth proportional to 159,578.29, 220,156.26 and 91,570.69 is: 126,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,578.29 : 220,156.26 = 91,570.69 : x
  2. Step 2: Convert to fraction form
    159,578.29/220,156.26 = 91,570.69/x
  3. Step 3: Cross multiply
    159,578.29x = 220,156.26 × 91,570.69
  4. Step 4: Simplify right side
    159,578.29x = 20,159,860,636.02
  5. Step 5: Solve for x
    x = 20,159,860,636.02/159,578.29
  6. Step 6: Final answer
    x = 126,332.10

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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.