Home / 180,421.38-270,582.72-100,360.70

Finding the Fourth Proportional to 180,421.38, 270,582.72 and 100,360.70

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Solution

The fourth proportional to 180,421.38, 270,582.72 and 100,360.70 is: 150,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,421.38 : 270,582.72 = 100,360.70 : x
  2. Step 2: Convert to fraction form
    180,421.38/270,582.72 = 100,360.70/x
  3. Step 3: Cross multiply
    180,421.38x = 270,582.72 × 100,360.70
  4. Step 4: Simplify right side
    180,421.38x = 27,155,871,187.10
  5. Step 5: Solve for x
    x = 27,155,871,187.10/180,421.38
  6. Step 6: Final answer
    x = 150,513.60

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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.