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Finding the Fourth Proportional to 123,526, 170,465.88 and 66,937.38

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Solution

The fourth proportional to 123,526, 170,465.88 and 66,937.38 is: 92,373.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,526 : 170,465.88 = 66,937.38 : x
  2. Step 2: Convert to fraction form
    123,526/170,465.88 = 66,937.38/x
  3. Step 3: Cross multiply
    123,526x = 170,465.88 × 66,937.38
  4. Step 4: Simplify right side
    123,526x = 11,410,539,386.59
  5. Step 5: Solve for x
    x = 11,410,539,386.59/123,526
  6. Step 6: Final answer
    x = 92,373.58

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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.