Home / 166,203.20-249,391.20-72,718.40

Finding the Fourth Proportional to 166,203.20, 249,391.20 and 72,718.40

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Solution

The fourth proportional to 166,203.20, 249,391.20 and 72,718.40 is: 109,115.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,203.20 : 249,391.20 = 72,718.40 : x
  2. Step 2: Convert to fraction form
    166,203.20/249,391.20 = 72,718.40/x
  3. Step 3: Cross multiply
    166,203.20x = 249,391.20 × 72,718.40
  4. Step 4: Simplify right side
    166,203.20x = 18,135,329,038.08
  5. Step 5: Solve for x
    x = 18,135,329,038.08/166,203.20
  6. Step 6: Final answer
    x = 109,115.40

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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.