Home / 145,155.30-217,732.97-45,324.04

Finding the Fourth Proportional to 145,155.30, 217,732.97 and 45,324.04

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Solution

The fourth proportional to 145,155.30, 217,732.97 and 45,324.04 is: 67,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,155.30 : 217,732.97 = 45,324.04 : x
  2. Step 2: Convert to fraction form
    145,155.30/217,732.97 = 45,324.04/x
  3. Step 3: Cross multiply
    145,155.30x = 217,732.97 × 45,324.04
  4. Step 4: Simplify right side
    145,155.30x = 9,868,537,841.60
  5. Step 5: Solve for x
    x = 9,868,537,841.60/145,155.30
  6. Step 6: Final answer
    x = 67,986.07

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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.