Home / 153,255.29-211,473.72-85,256.19

Finding the Fourth Proportional to 153,255.29, 211,473.72 and 85,256.19

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Solution

The fourth proportional to 153,255.29, 211,473.72 and 85,256.19 is: 117,643.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,255.29 : 211,473.72 = 85,256.19 : x
  2. Step 2: Convert to fraction form
    153,255.29/211,473.72 = 85,256.19/x
  3. Step 3: Cross multiply
    153,255.29x = 211,473.72 × 85,256.19
  4. Step 4: Simplify right side
    153,255.29x = 18,029,443,652.33
  5. Step 5: Solve for x
    x = 18,029,443,652.33/153,255.29
  6. Step 6: Final answer
    x = 117,643.21

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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.