Home / 166,438.80-249,512.40-99,808.20

Finding the Fourth Proportional to 166,438.80, 249,512.40 and 99,808.20

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Solution

The fourth proportional to 166,438.80, 249,512.40 and 99,808.20 is: 149,624.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,438.80 : 249,512.40 = 99,808.20 : x
  2. Step 2: Convert to fraction form
    166,438.80/249,512.40 = 99,808.20/x
  3. Step 3: Cross multiply
    166,438.80x = 249,512.40 × 99,808.20
  4. Step 4: Simplify right side
    166,438.80x = 24,903,383,521.68
  5. Step 5: Solve for x
    x = 24,903,383,521.68/166,438.80
  6. Step 6: Final answer
    x = 149,624.87

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1.5x scale

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.