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Finding the Fourth Proportional to 166,085.70, 249,128.55 and 156,900.30

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Solution

The fourth proportional to 166,085.70, 249,128.55 and 156,900.30 is: 235,350.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,085.70 : 249,128.55 = 156,900.30 : x
  2. Step 2: Convert to fraction form
    166,085.70/249,128.55 = 156,900.30/x
  3. Step 3: Cross multiply
    166,085.70x = 249,128.55 × 156,900.30
  4. Step 4: Simplify right side
    166,085.70x = 39,088,344,233.57
  5. Step 5: Solve for x
    x = 39,088,344,233.57/166,085.70
  6. Step 6: Final answer
    x = 235,350.45

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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.