Home / 143,355.40-215,033.46-43,516.36

Finding the Fourth Proportional to 143,355.40, 215,033.46 and 43,516.36

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Solution

The fourth proportional to 143,355.40, 215,033.46 and 43,516.36 is: 65,274.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,355.40 : 215,033.46 = 43,516.36 : x
  2. Step 2: Convert to fraction form
    143,355.40/215,033.46 = 43,516.36/x
  3. Step 3: Cross multiply
    143,355.40x = 215,033.46 × 43,516.36
  4. Step 4: Simplify right side
    143,355.40x = 9,357,473,457.41
  5. Step 5: Solve for x
    x = 9,357,473,457.41/143,355.40
  6. Step 6: Final answer
    x = 65,274.65

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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.