Home / 208,083.96-287,155.05-112,590.72

Finding the Fourth Proportional to 208,083.96, 287,155.05 and 112,590.72

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Solution

The fourth proportional to 208,083.96, 287,155.05 and 112,590.72 is: 155,374.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,083.96 : 287,155.05 = 112,590.72 : x
  2. Step 2: Convert to fraction form
    208,083.96/287,155.05 = 112,590.72/x
  3. Step 3: Cross multiply
    208,083.96x = 287,155.05 × 112,590.72
  4. Step 4: Simplify right side
    208,083.96x = 32,330,993,831.14
  5. Step 5: Solve for x
    x = 32,330,993,831.14/208,083.96
  6. Step 6: Final answer
    x = 155,374.75

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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.