Home / 212,780.91-293,633.66-115,985.69

Finding the Fourth Proportional to 212,780.91, 293,633.66 and 115,985.69

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Solution

The fourth proportional to 212,780.91, 293,633.66 and 115,985.69 is: 160,058.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,780.91 : 293,633.66 = 115,985.69 : x
  2. Step 2: Convert to fraction form
    212,780.91/293,633.66 = 115,985.69/x
  3. Step 3: Cross multiply
    212,780.91x = 293,633.66 × 115,985.69
  4. Step 4: Simplify right side
    212,780.91x = 34,057,301,484.12
  5. Step 5: Solve for x
    x = 34,057,301,484.12/212,780.91
  6. Step 6: Final answer
    x = 160,058.07

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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.