Home / 166,512.60-249,623.10-99,979.20

Finding the Fourth Proportional to 166,512.60, 249,623.10 and 99,979.20

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Solution

The fourth proportional to 166,512.60, 249,623.10 and 99,979.20 is: 149,881.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,512.60 : 249,623.10 = 99,979.20 : x
  2. Step 2: Convert to fraction form
    166,512.60/249,623.10 = 99,979.20/x
  3. Step 3: Cross multiply
    166,512.60x = 249,623.10 × 99,979.20
  4. Step 4: Simplify right side
    166,512.60x = 24,957,117,839.52
  5. Step 5: Solve for x
    x = 24,957,117,839.52/166,512.60
  6. Step 6: Final answer
    x = 149,881.26

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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.