Home / 108,315.36-149,415.12-62,988.36

Finding the Fourth Proportional to 108,315.36, 149,415.12 and 62,988.36

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Solution

The fourth proportional to 108,315.36, 149,415.12 and 62,988.36 is: 86,889.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,315.36 : 149,415.12 = 62,988.36 : x
  2. Step 2: Convert to fraction form
    108,315.36/149,415.12 = 62,988.36/x
  3. Step 3: Cross multiply
    108,315.36x = 149,415.12 × 62,988.36
  4. Step 4: Simplify right side
    108,315.36x = 9,411,413,368.00
  5. Step 5: Solve for x
    x = 9,411,413,368.00/108,315.36
  6. Step 6: Final answer
    x = 86,889.00

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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.