Home / 161,651.36-223,085.78-90,031.38

Finding the Fourth Proportional to 161,651.36, 223,085.78 and 90,031.38

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Solution

The fourth proportional to 161,651.36, 223,085.78 and 90,031.38 is: 124,247.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,651.36 : 223,085.78 = 90,031.38 : x
  2. Step 2: Convert to fraction form
    161,651.36/223,085.78 = 90,031.38/x
  3. Step 3: Cross multiply
    161,651.36x = 223,085.78 × 90,031.38
  4. Step 4: Simplify right side
    161,651.36x = 20,084,720,631.78
  5. Step 5: Solve for x
    x = 20,084,720,631.78/161,651.36
  6. Step 6: Final answer
    x = 124,247.15

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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.