Home / 166,579.30-249,979.58-77,839.66

Finding the Fourth Proportional to 166,579.30, 249,979.58 and 77,839.66

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Solution

The fourth proportional to 166,579.30, 249,979.58 and 77,839.66 is: 116,811.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,579.30 : 249,979.58 = 77,839.66 : x
  2. Step 2: Convert to fraction form
    166,579.30/249,979.58 = 77,839.66/x
  3. Step 3: Cross multiply
    166,579.30x = 249,979.58 × 77,839.66
  4. Step 4: Simplify right side
    166,579.30x = 19,458,323,875.05
  5. Step 5: Solve for x
    x = 19,458,323,875.05/166,579.30
  6. Step 6: Final answer
    x = 116,811.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.