Home / 108,890.30-163,258.23-42,274.28

Finding the Fourth Proportional to 108,890.30, 163,258.23 and 42,274.28

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Solution

The fourth proportional to 108,890.30, 163,258.23 and 42,274.28 is: 63,381.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,890.30 : 163,258.23 = 42,274.28 : x
  2. Step 2: Convert to fraction form
    108,890.30/163,258.23 = 42,274.28/x
  3. Step 3: Cross multiply
    108,890.30x = 163,258.23 × 42,274.28
  4. Step 4: Simplify right side
    108,890.30x = 6,901,624,127.32
  5. Step 5: Solve for x
    x = 6,901,624,127.32/108,890.30
  6. Step 6: Final answer
    x = 63,381.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.