Home / 208,430.10-287,625.83-112,934.75

Finding the Fourth Proportional to 208,430.10, 287,625.83 and 112,934.75

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Solution

The fourth proportional to 208,430.10, 287,625.83 and 112,934.75 is: 155,845.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,430.10 : 287,625.83 = 112,934.75 : x
  2. Step 2: Convert to fraction form
    208,430.10/287,625.83 = 112,934.75/x
  3. Step 3: Cross multiply
    208,430.10x = 287,625.83 × 112,934.75
  4. Step 4: Simplify right side
    208,430.10x = 32,482,949,201.79
  5. Step 5: Solve for x
    x = 32,482,949,201.79/208,430.10
  6. Step 6: Final answer
    x = 155,845.77

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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.