Home / 208,126.06-287,214-112,632.82

Finding the Fourth Proportional to 208,126.06, 287,214 and 112,632.82

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Solution

The fourth proportional to 208,126.06, 287,214 and 112,632.82 is: 155,433.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,126.06 : 287,214 = 112,632.82 : x
  2. Step 2: Convert to fraction form
    208,126.06/287,214 = 112,632.82/x
  3. Step 3: Cross multiply
    208,126.06x = 287,214 × 112,632.82
  4. Step 4: Simplify right side
    208,126.06x = 32,349,722,763.48
  5. Step 5: Solve for x
    x = 32,349,722,763.48/208,126.06
  6. Step 6: Final answer
    x = 155,433.31

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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.