Home / 157,389.25-217,196.83-85,769.10

Finding the Fourth Proportional to 157,389.25, 217,196.83 and 85,769.10

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Solution

The fourth proportional to 157,389.25, 217,196.83 and 85,769.10 is: 118,361.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,389.25 : 217,196.83 = 85,769.10 : x
  2. Step 2: Convert to fraction form
    157,389.25/217,196.83 = 85,769.10/x
  3. Step 3: Cross multiply
    157,389.25x = 217,196.83 × 85,769.10
  4. Step 4: Simplify right side
    157,389.25x = 18,628,776,631.95
  5. Step 5: Solve for x
    x = 18,628,776,631.95/157,389.25
  6. Step 6: Final answer
    x = 118,361.18

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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.