Home / 115,933.07-160,000.92-64,959.57

Finding the Fourth Proportional to 115,933.07, 160,000.92 and 64,959.57

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Solution

The fourth proportional to 115,933.07, 160,000.92 and 64,959.57 is: 89,651.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,933.07 : 160,000.92 = 64,959.57 : x
  2. Step 2: Convert to fraction form
    115,933.07/160,000.92 = 64,959.57/x
  3. Step 3: Cross multiply
    115,933.07x = 160,000.92 × 64,959.57
  4. Step 4: Simplify right side
    115,933.07x = 10,393,590,962.80
  5. Step 5: Solve for x
    x = 10,393,590,962.80/115,933.07
  6. Step 6: Final answer
    x = 89,651.65

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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.