Home / 118,397.16-163,388.21-64,683.09

Finding the Fourth Proportional to 118,397.16, 163,388.21 and 64,683.09

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Solution

The fourth proportional to 118,397.16, 163,388.21 and 64,683.09 is: 89,262.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,397.16 : 163,388.21 = 64,683.09 : x
  2. Step 2: Convert to fraction form
    118,397.16/163,388.21 = 64,683.09/x
  3. Step 3: Cross multiply
    118,397.16x = 163,388.21 × 64,683.09
  4. Step 4: Simplify right side
    118,397.16x = 10,568,453,968.95
  5. Step 5: Solve for x
    x = 10,568,453,968.95/118,397.16
  6. Step 6: Final answer
    x = 89,262.73

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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.