Home / 166,003.40-249,005.10-72,691.40

Finding the Fourth Proportional to 166,003.40, 249,005.10 and 72,691.40

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Solution

The fourth proportional to 166,003.40, 249,005.10 and 72,691.40 is: 109,037.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,003.40 : 249,005.10 = 72,691.40 : x
  2. Step 2: Convert to fraction form
    166,003.40/249,005.10 = 72,691.40/x
  3. Step 3: Cross multiply
    166,003.40x = 249,005.10 × 72,691.40
  4. Step 4: Simplify right side
    166,003.40x = 18,100,529,326.14
  5. Step 5: Solve for x
    x = 18,100,529,326.14/166,003.40
  6. Step 6: Final answer
    x = 109,037.10

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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.