Home / 143,939.47-215,482.73-106,666.84

Finding the Fourth Proportional to 143,939.47, 215,482.73 and 106,666.84

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Solution

The fourth proportional to 143,939.47, 215,482.73 and 106,666.84 is: 159,684.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,939.47 : 215,482.73 = 106,666.84 : x
  2. Step 2: Convert to fraction form
    143,939.47/215,482.73 = 106,666.84/x
  3. Step 3: Cross multiply
    143,939.47x = 215,482.73 × 106,666.84
  4. Step 4: Simplify right side
    143,939.47x = 22,984,861,243.09
  5. Step 5: Solve for x
    x = 22,984,861,243.09/143,939.47
  6. Step 6: Final answer
    x = 159,684.22

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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.