Home / 143,378.16-215,061.62-43,534.32

Finding the Fourth Proportional to 143,378.16, 215,061.62 and 43,534.32

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Solution

The fourth proportional to 143,378.16, 215,061.62 and 43,534.32 is: 65,299.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,378.16 : 215,061.62 = 43,534.32 : x
  2. Step 2: Convert to fraction form
    143,378.16/215,061.62 = 43,534.32/x
  3. Step 3: Cross multiply
    143,378.16x = 215,061.62 × 43,534.32
  4. Step 4: Simplify right side
    143,378.16x = 9,362,561,384.80
  5. Step 5: Solve for x
    x = 9,362,561,384.80/143,378.16
  6. Step 6: Final answer
    x = 65,299.77

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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.