Home / 208,686.06-313,077.69-68,436.18

Finding the Fourth Proportional to 208,686.06, 313,077.69 and 68,436.18

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Solution

The fourth proportional to 208,686.06, 313,077.69 and 68,436.18 is: 102,670.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,686.06 : 313,077.69 = 68,436.18 : x
  2. Step 2: Convert to fraction form
    208,686.06/313,077.69 = 68,436.18/x
  3. Step 3: Cross multiply
    208,686.06x = 313,077.69 × 68,436.18
  4. Step 4: Simplify right side
    208,686.06x = 21,425,841,146.82
  5. Step 5: Solve for x
    x = 21,425,841,146.82/208,686.06
  6. Step 6: Final answer
    x = 102,670.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.