Home / 108,142.98-149,240.52-62,828.34

Finding the Fourth Proportional to 108,142.98, 149,240.52 and 62,828.34

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Solution

The fourth proportional to 108,142.98, 149,240.52 and 62,828.34 is: 86,704.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,142.98 : 149,240.52 = 62,828.34 : x
  2. Step 2: Convert to fraction form
    108,142.98/149,240.52 = 62,828.34/x
  3. Step 3: Cross multiply
    108,142.98x = 149,240.52 × 62,828.34
  4. Step 4: Simplify right side
    108,142.98x = 9,376,534,132.34
  5. Step 5: Solve for x
    x = 9,376,534,132.34/108,142.98
  6. Step 6: Final answer
    x = 86,704.97

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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.