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Finding the Fourth Proportional to 109,349.66, 150,903.06 and 61,603.76

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Solution

The fourth proportional to 109,349.66, 150,903.06 and 61,603.76 is: 85,013.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,349.66 : 150,903.06 = 61,603.76 : x
  2. Step 2: Convert to fraction form
    109,349.66/150,903.06 = 61,603.76/x
  3. Step 3: Cross multiply
    109,349.66x = 150,903.06 × 61,603.76
  4. Step 4: Simplify right side
    109,349.66x = 9,296,195,891.51
  5. Step 5: Solve for x
    x = 9,296,195,891.51/109,349.66
  6. Step 6: Final answer
    x = 85,013.49

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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.