Home / 166,137.20-249,205.80-121,522.40

Finding the Fourth Proportional to 166,137.20, 249,205.80 and 121,522.40

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Solution

The fourth proportional to 166,137.20, 249,205.80 and 121,522.40 is: 182,283.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,137.20 : 249,205.80 = 121,522.40 : x
  2. Step 2: Convert to fraction form
    166,137.20/249,205.80 = 121,522.40/x
  3. Step 3: Cross multiply
    166,137.20x = 249,205.80 × 121,522.40
  4. Step 4: Simplify right side
    166,137.20x = 30,284,086,909.92
  5. Step 5: Solve for x
    x = 30,284,086,909.92/166,137.20
  6. Step 6: Final answer
    x = 182,283.60

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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.