Home / 157,386.25-217,192.69-85,766.10

Finding the Fourth Proportional to 157,386.25, 217,192.69 and 85,766.10

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Solution

The fourth proportional to 157,386.25, 217,192.69 and 85,766.10 is: 118,357.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,386.25 : 217,192.69 = 85,766.10 : x
  2. Step 2: Convert to fraction form
    157,386.25/217,192.69 = 85,766.10/x
  3. Step 3: Cross multiply
    157,386.25x = 217,192.69 × 85,766.10
  4. Step 4: Simplify right side
    157,386.25x = 18,627,769,969.81
  5. Step 5: Solve for x
    x = 18,627,769,969.81/157,386.25
  6. Step 6: Final answer
    x = 118,357.04

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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.