Home / 143,608.13-215,412.20-38,424.36

Finding the Fourth Proportional to 143,608.13, 215,412.20 and 38,424.36

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Solution

The fourth proportional to 143,608.13, 215,412.20 and 38,424.36 is: 57,636.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,608.13 : 215,412.20 = 38,424.36 : x
  2. Step 2: Convert to fraction form
    143,608.13/215,412.20 = 38,424.36/x
  3. Step 3: Cross multiply
    143,608.13x = 215,412.20 × 38,424.36
  4. Step 4: Simplify right side
    143,608.13x = 8,277,075,729.07
  5. Step 5: Solve for x
    x = 8,277,075,729.07/143,608.13
  6. Step 6: Final answer
    x = 57,636.54

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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.