Home / 166,001.40-249,002.10-72,689.40

Finding the Fourth Proportional to 166,001.40, 249,002.10 and 72,689.40

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Solution

The fourth proportional to 166,001.40, 249,002.10 and 72,689.40 is: 109,034.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,001.40 : 249,002.10 = 72,689.40 : x
  2. Step 2: Convert to fraction form
    166,001.40/249,002.10 = 72,689.40/x
  3. Step 3: Cross multiply
    166,001.40x = 249,002.10 × 72,689.40
  4. Step 4: Simplify right side
    166,001.40x = 18,099,813,247.74
  5. Step 5: Solve for x
    x = 18,099,813,247.74/166,001.40
  6. Step 6: Final answer
    x = 109,034.10

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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.