Home / 108,528.04-149,781.06-66,111.40

Finding the Fourth Proportional to 108,528.04, 149,781.06 and 66,111.40

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Solution

The fourth proportional to 108,528.04, 149,781.06 and 66,111.40 is: 91,241.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,528.04 : 149,781.06 = 66,111.40 : x
  2. Step 2: Convert to fraction form
    108,528.04/149,781.06 = 66,111.40/x
  3. Step 3: Cross multiply
    108,528.04x = 149,781.06 × 66,111.40
  4. Step 4: Simplify right side
    108,528.04x = 9,902,235,570.08
  5. Step 5: Solve for x
    x = 9,902,235,570.08/108,528.04
  6. Step 6: Final answer
    x = 91,241.26

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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.