Home / 208,394.75-287,585.26-112,901.45

Finding the Fourth Proportional to 208,394.75, 287,585.26 and 112,901.45

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Solution

The fourth proportional to 208,394.75, 287,585.26 and 112,901.45 is: 155,804.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,394.75 : 287,585.26 = 112,901.45 : x
  2. Step 2: Convert to fraction form
    208,394.75/287,585.26 = 112,901.45/x
  3. Step 3: Cross multiply
    208,394.75x = 287,585.26 × 112,901.45
  4. Step 4: Simplify right side
    208,394.75x = 32,468,791,449.98
  5. Step 5: Solve for x
    x = 32,468,791,449.98/208,394.75
  6. Step 6: Final answer
    x = 155,804.27

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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.