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Finding the Fourth Proportional to 108,885.81, 150,258.53 and 61,141.17

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Solution

The fourth proportional to 108,885.81, 150,258.53 and 61,141.17 is: 84,372.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,885.81 : 150,258.53 = 61,141.17 : x
  2. Step 2: Convert to fraction form
    108,885.81/150,258.53 = 61,141.17/x
  3. Step 3: Cross multiply
    108,885.81x = 150,258.53 × 61,141.17
  4. Step 4: Simplify right side
    108,885.81x = 9,186,982,020.97
  5. Step 5: Solve for x
    x = 9,186,982,020.97/108,885.81
  6. Step 6: Final answer
    x = 84,372.63

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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.