Home / 166,136.40-249,262.20-72,709.20

Finding the Fourth Proportional to 166,136.40, 249,262.20 and 72,709.20

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Solution

The fourth proportional to 166,136.40, 249,262.20 and 72,709.20 is: 109,089.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,136.40 : 249,262.20 = 72,709.20 : x
  2. Step 2: Convert to fraction form
    166,136.40/249,262.20 = 72,709.20/x
  3. Step 3: Cross multiply
    166,136.40x = 249,262.20 × 72,709.20
  4. Step 4: Simplify right side
    166,136.40x = 18,123,655,152.24
  5. Step 5: Solve for x
    x = 18,123,655,152.24/166,136.40
  6. Step 6: Final answer
    x = 109,089.01

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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.