Home / 108,012.60-149,017.62-67,728.04

Finding the Fourth Proportional to 108,012.60, 149,017.62 and 67,728.04

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Solution

The fourth proportional to 108,012.60, 149,017.62 and 67,728.04 is: 93,439.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,012.60 : 149,017.62 = 67,728.04 : x
  2. Step 2: Convert to fraction form
    108,012.60/149,017.62 = 67,728.04/x
  3. Step 3: Cross multiply
    108,012.60x = 149,017.62 × 67,728.04
  4. Step 4: Simplify right side
    108,012.60x = 10,092,671,328.06
  5. Step 5: Solve for x
    x = 10,092,671,328.06/108,012.60
  6. Step 6: Final answer
    x = 93,439.76

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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.