Home / 208,121.40-287,206.47-112,627.26

Finding the Fourth Proportional to 208,121.40, 287,206.47 and 112,627.26

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Solution

The fourth proportional to 208,121.40, 287,206.47 and 112,627.26 is: 155,425.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,121.40 : 287,206.47 = 112,627.26 : x
  2. Step 2: Convert to fraction form
    208,121.40/287,206.47 = 112,627.26/x
  3. Step 3: Cross multiply
    208,121.40x = 287,206.47 × 112,627.26
  4. Step 4: Simplify right side
    208,121.40x = 32,347,277,770.37
  5. Step 5: Solve for x
    x = 32,347,277,770.37/208,121.40
  6. Step 6: Final answer
    x = 155,425.04

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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.