Home / 153,328.46-211,593.29-85,343.97

Finding the Fourth Proportional to 153,328.46, 211,593.29 and 85,343.97

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Solution

The fourth proportional to 153,328.46, 211,593.29 and 85,343.97 is: 117,774.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,328.46 : 211,593.29 = 85,343.97 : x
  2. Step 2: Convert to fraction form
    153,328.46/211,593.29 = 85,343.97/x
  3. Step 3: Cross multiply
    153,328.46x = 211,593.29 × 85,343.97
  4. Step 4: Simplify right side
    153,328.46x = 18,058,211,760.72
  5. Step 5: Solve for x
    x = 18,058,211,760.72/153,328.46
  6. Step 6: Final answer
    x = 117,774.69

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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.