Home / 157,568.93-236,156.29-78,705.17

Finding the Fourth Proportional to 157,568.93, 236,156.29 and 78,705.17

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Solution

The fourth proportional to 157,568.93, 236,156.29 and 78,705.17 is: 117,959.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,568.93 : 236,156.29 = 78,705.17 : x
  2. Step 2: Convert to fraction form
    157,568.93/236,156.29 = 78,705.17/x
  3. Step 3: Cross multiply
    157,568.93x = 236,156.29 × 78,705.17
  4. Step 4: Simplify right side
    157,568.93x = 18,586,719,573.47
  5. Step 5: Solve for x
    x = 18,586,719,573.47/157,568.93
  6. Step 6: Final answer
    x = 117,959.30

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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.