Home / 143,948.80-215,923.20-130,170.70

Finding the Fourth Proportional to 143,948.80, 215,923.20 and 130,170.70

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Solution

The fourth proportional to 143,948.80, 215,923.20 and 130,170.70 is: 195,256.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,948.80 : 215,923.20 = 130,170.70 : x
  2. Step 2: Convert to fraction form
    143,948.80/215,923.20 = 130,170.70/x
  3. Step 3: Cross multiply
    143,948.80x = 215,923.20 × 130,170.70
  4. Step 4: Simplify right side
    143,948.80x = 28,106,874,090.24
  5. Step 5: Solve for x
    x = 28,106,874,090.24/143,948.80
  6. Step 6: Final answer
    x = 195,256.05

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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.