Home / 143,248.56-214,545.65-68,421.64

Finding the Fourth Proportional to 143,248.56, 214,545.65 and 68,421.64

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Solution

The fourth proportional to 143,248.56, 214,545.65 and 68,421.64 is: 102,476.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,248.56 : 214,545.65 = 68,421.64 : x
  2. Step 2: Convert to fraction form
    143,248.56/214,545.65 = 68,421.64/x
  3. Step 3: Cross multiply
    143,248.56x = 214,545.65 × 68,421.64
  4. Step 4: Simplify right side
    143,248.56x = 14,679,565,227.87
  5. Step 5: Solve for x
    x = 14,679,565,227.87/143,248.56
  6. Step 6: Final answer
    x = 102,476.18

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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.