Home / 123,488.53-170,413.23-66,899.50

Finding the Fourth Proportional to 123,488.53, 170,413.23 and 66,899.50

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Solution

The fourth proportional to 123,488.53, 170,413.23 and 66,899.50 is: 92,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,488.53 : 170,413.23 = 66,899.50 : x
  2. Step 2: Convert to fraction form
    123,488.53/170,413.23 = 66,899.50/x
  3. Step 3: Cross multiply
    123,488.53x = 170,413.23 × 66,899.50
  4. Step 4: Simplify right side
    123,488.53x = 11,400,559,880.39
  5. Step 5: Solve for x
    x = 11,400,559,880.39/123,488.53
  6. Step 6: Final answer
    x = 92,320.80

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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.