Home / 143,895.40-215,843.10-142,973.80

Finding the Fourth Proportional to 143,895.40, 215,843.10 and 142,973.80

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Solution

The fourth proportional to 143,895.40, 215,843.10 and 142,973.80 is: 214,460.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,895.40 : 215,843.10 = 142,973.80 : x
  2. Step 2: Convert to fraction form
    143,895.40/215,843.10 = 142,973.80/x
  3. Step 3: Cross multiply
    143,895.40x = 215,843.10 × 142,973.80
  4. Step 4: Simplify right side
    143,895.40x = 30,859,908,210.78
  5. Step 5: Solve for x
    x = 30,859,908,210.78/143,895.40
  6. Step 6: Final answer
    x = 214,460.70

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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.