Home / 108,287.40-149,476.18-65,268.43

Finding the Fourth Proportional to 108,287.40, 149,476.18 and 65,268.43

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Solution

The fourth proportional to 108,287.40, 149,476.18 and 65,268.43 is: 90,094.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,287.40 : 149,476.18 = 65,268.43 : x
  2. Step 2: Convert to fraction form
    108,287.40/149,476.18 = 65,268.43/x
  3. Step 3: Cross multiply
    108,287.40x = 149,476.18 × 65,268.43
  4. Step 4: Simplify right side
    108,287.40x = 9,756,075,176.51
  5. Step 5: Solve for x
    x = 9,756,075,176.51/108,287.40
  6. Step 6: Final answer
    x = 90,094.28

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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.