Home / 108,515.66-149,698.78-70,264.22

Finding the Fourth Proportional to 108,515.66, 149,698.78 and 70,264.22

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Solution

The fourth proportional to 108,515.66, 149,698.78 and 70,264.22 is: 96,930.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,515.66 : 149,698.78 = 70,264.22 : x
  2. Step 2: Convert to fraction form
    108,515.66/149,698.78 = 70,264.22/x
  3. Step 3: Cross multiply
    108,515.66x = 149,698.78 × 70,264.22
  4. Step 4: Simplify right side
    108,515.66x = 10,518,468,011.65
  5. Step 5: Solve for x
    x = 10,518,468,011.65/108,515.66
  6. Step 6: Final answer
    x = 96,930.42

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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.