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Finding the Fourth Proportional to 109,658.45, 151,328.90 and 59,357.45

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Solution

The fourth proportional to 109,658.45, 151,328.90 and 59,357.45 is: 81,913.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,658.45 : 151,328.90 = 59,357.45 : x
  2. Step 2: Convert to fraction form
    109,658.45/151,328.90 = 59,357.45/x
  3. Step 3: Cross multiply
    109,658.45x = 151,328.90 × 59,357.45
  4. Step 4: Simplify right side
    109,658.45x = 8,982,498,142.02
  5. Step 5: Solve for x
    x = 8,982,498,142.02/109,658.45
  6. Step 6: Final answer
    x = 81,913.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.