Home / 108,669.60-149,970.24-60,920.64

Finding the Fourth Proportional to 108,669.60, 149,970.24 and 60,920.64

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Solution

The fourth proportional to 108,669.60, 149,970.24 and 60,920.64 is: 84,073.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,669.60 : 149,970.24 = 60,920.64 : x
  2. Step 2: Convert to fraction form
    108,669.60/149,970.24 = 60,920.64/x
  3. Step 3: Cross multiply
    108,669.60x = 149,970.24 × 60,920.64
  4. Step 4: Simplify right side
    108,669.60x = 9,136,283,001.75
  5. Step 5: Solve for x
    x = 9,136,283,001.75/108,669.60
  6. Step 6: Final answer
    x = 84,073.95

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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.