Home / 166,113.20-249,256.20-72,628.40

Finding the Fourth Proportional to 166,113.20, 249,256.20 and 72,628.40

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Solution

The fourth proportional to 166,113.20, 249,256.20 and 72,628.40 is: 108,980.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,113.20 : 249,256.20 = 72,628.40 : x
  2. Step 2: Convert to fraction form
    166,113.20/249,256.20 = 72,628.40/x
  3. Step 3: Cross multiply
    166,113.20x = 249,256.20 × 72,628.40
  4. Step 4: Simplify right side
    166,113.20x = 18,103,078,996.08
  5. Step 5: Solve for x
    x = 18,103,078,996.08/166,113.20
  6. Step 6: Final answer
    x = 108,980.38

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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.