Home / 108,631.46-149,948.10-68,412.50

Finding the Fourth Proportional to 108,631.46, 149,948.10 and 68,412.50

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Solution

The fourth proportional to 108,631.46, 149,948.10 and 68,412.50 is: 94,432.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,631.46 : 149,948.10 = 68,412.50 : x
  2. Step 2: Convert to fraction form
    108,631.46/149,948.10 = 68,412.50/x
  3. Step 3: Cross multiply
    108,631.46x = 149,948.10 × 68,412.50
  4. Step 4: Simplify right side
    108,631.46x = 10,258,324,391.25
  5. Step 5: Solve for x
    x = 10,258,324,391.25/108,631.46
  6. Step 6: Final answer
    x = 94,432.35

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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.