Home / 208,074.04-287,142.17-112,580.75

Finding the Fourth Proportional to 208,074.04, 287,142.17 and 112,580.75

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Solution

The fourth proportional to 208,074.04, 287,142.17 and 112,580.75 is: 155,361.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,074.04 : 287,142.17 = 112,580.75 : x
  2. Step 2: Convert to fraction form
    208,074.04/287,142.17 = 112,580.75/x
  3. Step 3: Cross multiply
    208,074.04x = 287,142.17 × 112,580.75
  4. Step 4: Simplify right side
    208,074.04x = 32,326,681,010.18
  5. Step 5: Solve for x
    x = 32,326,681,010.18/208,074.04
  6. Step 6: Final answer
    x = 155,361.43

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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.