Home / 217,081.35-299,588.15-131,061.51

Finding the Fourth Proportional to 217,081.35, 299,588.15 and 131,061.51

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Solution

The fourth proportional to 217,081.35, 299,588.15 and 131,061.51 is: 180,874.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,081.35 : 299,588.15 = 131,061.51 : x
  2. Step 2: Convert to fraction form
    217,081.35/299,588.15 = 131,061.51/x
  3. Step 3: Cross multiply
    217,081.35x = 299,588.15 × 131,061.51
  4. Step 4: Simplify right side
    217,081.35x = 39,264,475,644.76
  5. Step 5: Solve for x
    x = 39,264,475,644.76/217,081.35
  6. Step 6: Final answer
    x = 180,874.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.