Home / 157,411.35-236,117.03-86,552.55

Finding the Fourth Proportional to 157,411.35, 236,117.03 and 86,552.55

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Solution

The fourth proportional to 157,411.35, 236,117.03 and 86,552.55 is: 129,828.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,411.35 : 236,117.03 = 86,552.55 : x
  2. Step 2: Convert to fraction form
    157,411.35/236,117.03 = 86,552.55/x
  3. Step 3: Cross multiply
    157,411.35x = 236,117.03 × 86,552.55
  4. Step 4: Simplify right side
    157,411.35x = 20,436,530,612.16
  5. Step 5: Solve for x
    x = 20,436,530,612.16/157,411.35
  6. Step 6: Final answer
    x = 129,828.83

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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.