Home / 143,810.81-215,716.22-43,971

Finding the Fourth Proportional to 143,810.81, 215,716.22 and 43,971

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Solution

The fourth proportional to 143,810.81, 215,716.22 and 43,971 is: 65,956.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,810.81 : 215,716.22 = 43,971 : x
  2. Step 2: Convert to fraction form
    143,810.81/215,716.22 = 43,971/x
  3. Step 3: Cross multiply
    143,810.81x = 215,716.22 × 43,971
  4. Step 4: Simplify right side
    143,810.81x = 9,485,257,689.77
  5. Step 5: Solve for x
    x = 9,485,257,689.77/143,810.81
  6. Step 6: Final answer
    x = 65,956.50

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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.