Home / 108,087.04-149,117.25-72,220.24

Finding the Fourth Proportional to 108,087.04, 149,117.25 and 72,220.24

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Solution

The fourth proportional to 108,087.04, 149,117.25 and 72,220.24 is: 99,635.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,087.04 : 149,117.25 = 72,220.24 : x
  2. Step 2: Convert to fraction form
    108,087.04/149,117.25 = 72,220.24/x
  3. Step 3: Cross multiply
    108,087.04x = 149,117.25 × 72,220.24
  4. Step 4: Simplify right side
    108,087.04x = 10,769,283,583.14
  5. Step 5: Solve for x
    x = 10,769,283,583.14/108,087.04
  6. Step 6: Final answer
    x = 99,635.29

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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.