Home / 208,370.13-287,552.78-112,878.89

Finding the Fourth Proportional to 208,370.13, 287,552.78 and 112,878.89

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Solution

The fourth proportional to 208,370.13, 287,552.78 and 112,878.89 is: 155,773.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,370.13 : 287,552.78 = 112,878.89 : x
  2. Step 2: Convert to fraction form
    208,370.13/287,552.78 = 112,878.89/x
  3. Step 3: Cross multiply
    208,370.13x = 287,552.78 × 112,878.89
  4. Step 4: Simplify right side
    208,370.13x = 32,458,638,622.81
  5. Step 5: Solve for x
    x = 32,458,638,622.81/208,370.13
  6. Step 6: Final answer
    x = 155,773.95

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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.