Home / 157,693.82-217,618.24-86,075.50

Finding the Fourth Proportional to 157,693.82, 217,618.24 and 86,075.50

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Solution

The fourth proportional to 157,693.82, 217,618.24 and 86,075.50 is: 118,784.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,693.82 : 217,618.24 = 86,075.50 : x
  2. Step 2: Convert to fraction form
    157,693.82/217,618.24 = 86,075.50/x
  3. Step 3: Cross multiply
    157,693.82x = 217,618.24 × 86,075.50
  4. Step 4: Simplify right side
    157,693.82x = 18,731,598,817.12
  5. Step 5: Solve for x
    x = 18,731,598,817.12/157,693.82
  6. Step 6: Final answer
    x = 118,784.61

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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.