Home / 144,947.40-217,421.10-120,015.60

Finding the Fourth Proportional to 144,947.40, 217,421.10 and 120,015.60

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Solution

The fourth proportional to 144,947.40, 217,421.10 and 120,015.60 is: 180,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,947.40 : 217,421.10 = 120,015.60 : x
  2. Step 2: Convert to fraction form
    144,947.40/217,421.10 = 120,015.60/x
  3. Step 3: Cross multiply
    144,947.40x = 217,421.10 × 120,015.60
  4. Step 4: Simplify right side
    144,947.40x = 26,093,923,769.16
  5. Step 5: Solve for x
    x = 26,093,923,769.16/144,947.40
  6. Step 6: Final answer
    x = 180,023.40

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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.