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Finding the Fourth Proportional to 119,318.66, 164,658.26 and 65,603.21

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Solution

The fourth proportional to 119,318.66, 164,658.26 and 65,603.21 is: 90,531.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,318.66 : 164,658.26 = 65,603.21 : x
  2. Step 2: Convert to fraction form
    119,318.66/164,658.26 = 65,603.21/x
  3. Step 3: Cross multiply
    119,318.66x = 164,658.26 × 65,603.21
  4. Step 4: Simplify right side
    119,318.66x = 10,802,109,257.71
  5. Step 5: Solve for x
    x = 10,802,109,257.71/119,318.66
  6. Step 6: Final answer
    x = 90,531.60

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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.