Home / 145,111.80-217,667.70-136,363.80

Finding the Fourth Proportional to 145,111.80, 217,667.70 and 136,363.80

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Solution

The fourth proportional to 145,111.80, 217,667.70 and 136,363.80 is: 204,545.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,111.80 : 217,667.70 = 136,363.80 : x
  2. Step 2: Convert to fraction form
    145,111.80/217,667.70 = 136,363.80/x
  3. Step 3: Cross multiply
    145,111.80x = 217,667.70 × 136,363.80
  4. Step 4: Simplify right side
    145,111.80x = 29,681,994,709.26
  5. Step 5: Solve for x
    x = 29,681,994,709.26/145,111.80
  6. Step 6: Final answer
    x = 204,545.70

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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.