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Finding the Fourth Proportional to 109,348.66, 150,901.68 and 61,602.76

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Solution

The fourth proportional to 109,348.66, 150,901.68 and 61,602.76 is: 85,012.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,348.66 : 150,901.68 = 61,602.76 : x
  2. Step 2: Convert to fraction form
    109,348.66/150,901.68 = 61,602.76/x
  3. Step 3: Cross multiply
    109,348.66x = 150,901.68 × 61,602.76
  4. Step 4: Simplify right side
    109,348.66x = 9,295,959,976.64
  5. Step 5: Solve for x
    x = 9,295,959,976.64/109,348.66
  6. Step 6: Final answer
    x = 85,012.11

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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.