Home / 108,225.06-149,391.58-81,445.25

Finding the Fourth Proportional to 108,225.06, 149,391.58 and 81,445.25

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Solution

The fourth proportional to 108,225.06, 149,391.58 and 81,445.25 is: 112,425.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,225.06 : 149,391.58 = 81,445.25 : x
  2. Step 2: Convert to fraction form
    108,225.06/149,391.58 = 81,445.25/x
  3. Step 3: Cross multiply
    108,225.06x = 149,391.58 × 81,445.25
  4. Step 4: Simplify right side
    108,225.06x = 12,167,233,948.71
  5. Step 5: Solve for x
    x = 12,167,233,948.71/108,225.06
  6. Step 6: Final answer
    x = 112,425.29

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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.