Home / 157,569.68-236,157.41-78,705.92

Finding the Fourth Proportional to 157,569.68, 236,157.41 and 78,705.92

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Solution

The fourth proportional to 157,569.68, 236,157.41 and 78,705.92 is: 117,960.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,569.68 : 236,157.41 = 78,705.92 : x
  2. Step 2: Convert to fraction form
    157,569.68/236,157.41 = 78,705.92/x
  3. Step 3: Cross multiply
    157,569.68x = 236,157.41 × 78,705.92
  4. Step 4: Simplify right side
    157,569.68x = 18,586,984,644.55
  5. Step 5: Solve for x
    x = 18,586,984,644.55/157,569.68
  6. Step 6: Final answer
    x = 117,960.42

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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.