Home / 166,136.70-249,205.05-121,521.90

Finding the Fourth Proportional to 166,136.70, 249,205.05 and 121,521.90

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Solution

The fourth proportional to 166,136.70, 249,205.05 and 121,521.90 is: 182,282.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,136.70 : 249,205.05 = 121,521.90 : x
  2. Step 2: Convert to fraction form
    166,136.70/249,205.05 = 121,521.90/x
  3. Step 3: Cross multiply
    166,136.70x = 249,205.05 × 121,521.90
  4. Step 4: Simplify right side
    166,136.70x = 30,283,871,165.60
  5. Step 5: Solve for x
    x = 30,283,871,165.60/166,136.70
  6. Step 6: Final answer
    x = 182,282.85

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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.