Home / 143,373.51-215,052.03-68,545.31

Finding the Fourth Proportional to 143,373.51, 215,052.03 and 68,545.31

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Solution

The fourth proportional to 143,373.51, 215,052.03 and 68,545.31 is: 102,814.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,373.51 : 215,052.03 = 68,545.31 : x
  2. Step 2: Convert to fraction form
    143,373.51/215,052.03 = 68,545.31/x
  3. Step 3: Cross multiply
    143,373.51x = 215,052.03 × 68,545.31
  4. Step 4: Simplify right side
    143,373.51x = 14,740,806,987.22
  5. Step 5: Solve for x
    x = 14,740,806,987.22/143,373.51
  6. Step 6: Final answer
    x = 102,814.02

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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.