Home / 115,706.90-159,659.57-64,717.00

Finding the Fourth Proportional to 115,706.90, 159,659.57 and 64,717.00

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Solution

The fourth proportional to 115,706.90, 159,659.57 and 64,717.00 is: 89,300.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,706.90 : 159,659.57 = 64,717.00 : x
  2. Step 2: Convert to fraction form
    115,706.90/159,659.57 = 64,717.00/x
  3. Step 3: Cross multiply
    115,706.90x = 159,659.57 × 64,717.00
  4. Step 4: Simplify right side
    115,706.90x = 10,332,688,154.33
  5. Step 5: Solve for x
    x = 10,332,688,154.33/115,706.90
  6. Step 6: Final answer
    x = 89,300.53

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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.