Home / 108,564.48-149,810.88-66,116.16

Finding the Fourth Proportional to 108,564.48, 149,810.88 and 66,116.16

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Solution

The fourth proportional to 108,564.48, 149,810.88 and 66,116.16 is: 91,235.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,564.48 : 149,810.88 = 66,116.16 : x
  2. Step 2: Convert to fraction form
    108,564.48/149,810.88 = 66,116.16/x
  3. Step 3: Cross multiply
    108,564.48x = 149,810.88 × 66,116.16
  4. Step 4: Simplify right side
    108,564.48x = 9,904,920,111.82
  5. Step 5: Solve for x
    x = 9,904,920,111.82/108,564.48
  6. Step 6: Final answer
    x = 91,235.37

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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.