Home / 149,968.80-206,962.32-89,565.60

Finding the Fourth Proportional to 149,968.80, 206,962.32 and 89,565.60

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Solution

The fourth proportional to 149,968.80, 206,962.32 and 89,565.60 is: 123,603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,968.80 : 206,962.32 = 89,565.60 : x
  2. Step 2: Convert to fraction form
    149,968.80/206,962.32 = 89,565.60/x
  3. Step 3: Cross multiply
    149,968.80x = 206,962.32 × 89,565.60
  4. Step 4: Simplify right side
    149,968.80x = 18,536,704,368.19
  5. Step 5: Solve for x
    x = 18,536,704,368.19/149,968.80
  6. Step 6: Final answer
    x = 123,603.74

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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.