Home / 153,254.29-211,472.34-85,255.19

Finding the Fourth Proportional to 153,254.29, 211,472.34 and 85,255.19

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Solution

The fourth proportional to 153,254.29, 211,472.34 and 85,255.19 is: 117,641.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,254.29 : 211,472.34 = 85,255.19 : x
  2. Step 2: Convert to fraction form
    153,254.29/211,472.34 = 85,255.19/x
  3. Step 3: Cross multiply
    153,254.29x = 211,472.34 × 85,255.19
  4. Step 4: Simplify right side
    153,254.29x = 18,029,114,526.44
  5. Step 5: Solve for x
    x = 18,029,114,526.44/153,254.29
  6. Step 6: Final answer
    x = 117,641.83

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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.