Home / 166,134.40-249,259.20-72,707.20

Finding the Fourth Proportional to 166,134.40, 249,259.20 and 72,707.20

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Solution

The fourth proportional to 166,134.40, 249,259.20 and 72,707.20 is: 109,086.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,134.40 : 249,259.20 = 72,707.20 : x
  2. Step 2: Convert to fraction form
    166,134.40/249,259.20 = 72,707.20/x
  3. Step 3: Cross multiply
    166,134.40x = 249,259.20 × 72,707.20
  4. Step 4: Simplify right side
    166,134.40x = 18,122,938,506.24
  5. Step 5: Solve for x
    x = 18,122,938,506.24/166,134.40
  6. Step 6: Final answer
    x = 109,086.01

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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.