Home / 115,312.26-159,131.13-65,011.14

Finding the Fourth Proportional to 115,312.26, 159,131.13 and 65,011.14

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Solution

The fourth proportional to 115,312.26, 159,131.13 and 65,011.14 is: 89,715.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,312.26 : 159,131.13 = 65,011.14 : x
  2. Step 2: Convert to fraction form
    115,312.26/159,131.13 = 65,011.14/x
  3. Step 3: Cross multiply
    115,312.26x = 159,131.13 × 65,011.14
  4. Step 4: Simplify right side
    115,312.26x = 10,345,296,170.79
  5. Step 5: Solve for x
    x = 10,345,296,170.79/115,312.26
  6. Step 6: Final answer
    x = 89,715.49

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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.