Home / 124,388.02-171,519.82-84,031.72

Finding the Fourth Proportional to 124,388.02, 171,519.82 and 84,031.72

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Solution

The fourth proportional to 124,388.02, 171,519.82 and 84,031.72 is: 115,872.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,388.02 : 171,519.82 = 84,031.72 : x
  2. Step 2: Convert to fraction form
    124,388.02/171,519.82 = 84,031.72/x
  3. Step 3: Cross multiply
    124,388.02x = 171,519.82 × 84,031.72
  4. Step 4: Simplify right side
    124,388.02x = 14,413,104,210.93
  5. Step 5: Solve for x
    x = 14,413,104,210.93/124,388.02
  6. Step 6: Final answer
    x = 115,872.13

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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.