Home / 157,944.34-217,962.66-86,324.32

Finding the Fourth Proportional to 157,944.34, 217,962.66 and 86,324.32

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Solution

The fourth proportional to 157,944.34, 217,962.66 and 86,324.32 is: 119,127.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,944.34 : 217,962.66 = 86,324.32 : x
  2. Step 2: Convert to fraction form
    157,944.34/217,962.66 = 86,324.32/x
  3. Step 3: Cross multiply
    157,944.34x = 217,962.66 × 86,324.32
  4. Step 4: Simplify right side
    157,944.34x = 18,815,478,409.89
  5. Step 5: Solve for x
    x = 18,815,478,409.89/157,944.34
  6. Step 6: Final answer
    x = 119,127.27

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1.5x scale

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.