Home / 155,983.82-215,290.98-98,586.61

Finding the Fourth Proportional to 155,983.82, 215,290.98 and 98,586.61

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Solution

The fourth proportional to 155,983.82, 215,290.98 and 98,586.61 is: 136,070.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,983.82 : 215,290.98 = 98,586.61 : x
  2. Step 2: Convert to fraction form
    155,983.82/215,290.98 = 98,586.61/x
  3. Step 3: Cross multiply
    155,983.82x = 215,290.98 × 98,586.61
  4. Step 4: Simplify right side
    155,983.82x = 21,224,807,343.55
  5. Step 5: Solve for x
    x = 21,224,807,343.55/155,983.82
  6. Step 6: Final answer
    x = 136,070.57

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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.