Home / 108,644.04-149,928.60-66,202.68

Finding the Fourth Proportional to 108,644.04, 149,928.60 and 66,202.68

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Solution

The fourth proportional to 108,644.04, 149,928.60 and 66,202.68 is: 91,359.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,644.04 : 149,928.60 = 66,202.68 : x
  2. Step 2: Convert to fraction form
    108,644.04/149,928.60 = 66,202.68/x
  3. Step 3: Cross multiply
    108,644.04x = 149,928.60 × 66,202.68
  4. Step 4: Simplify right side
    108,644.04x = 9,925,675,128.65
  5. Step 5: Solve for x
    x = 9,925,675,128.65/108,644.04
  6. Step 6: Final answer
    x = 91,359.59

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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.