Home / 143,945.51-215,918.26-73,780.07

Finding the Fourth Proportional to 143,945.51, 215,918.26 and 73,780.07

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Solution

The fourth proportional to 143,945.51, 215,918.26 and 73,780.07 is: 110,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,945.51 : 215,918.26 = 73,780.07 : x
  2. Step 2: Convert to fraction form
    143,945.51/215,918.26 = 73,780.07/x
  3. Step 3: Cross multiply
    143,945.51x = 215,918.26 × 73,780.07
  4. Step 4: Simplify right side
    143,945.51x = 15,930,463,073.04
  5. Step 5: Solve for x
    x = 15,930,463,073.04/143,945.51
  6. Step 6: Final answer
    x = 110,670.10

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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.