Home / 115,984.36-160,053.06-65,683.72

Finding the Fourth Proportional to 115,984.36, 160,053.06 and 65,683.72

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Solution

The fourth proportional to 115,984.36, 160,053.06 and 65,683.72 is: 90,640.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,984.36 : 160,053.06 = 65,683.72 : x
  2. Step 2: Convert to fraction form
    115,984.36/160,053.06 = 65,683.72/x
  3. Step 3: Cross multiply
    115,984.36x = 160,053.06 × 65,683.72
  4. Step 4: Simplify right side
    115,984.36x = 10,512,880,378.18
  5. Step 5: Solve for x
    x = 10,512,880,378.18/115,984.36
  6. Step 6: Final answer
    x = 90,640.50

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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.