Home / 157,650.40-217,558.16-86,032

Finding the Fourth Proportional to 157,650.40, 217,558.16 and 86,032

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Solution

The fourth proportional to 157,650.40, 217,558.16 and 86,032 is: 118,724.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,650.40 : 217,558.16 = 86,032 : x
  2. Step 2: Convert to fraction form
    157,650.40/217,558.16 = 86,032/x
  3. Step 3: Cross multiply
    157,650.40x = 217,558.16 × 86,032
  4. Step 4: Simplify right side
    157,650.40x = 18,716,963,621.12
  5. Step 5: Solve for x
    x = 18,716,963,621.12/157,650.40
  6. Step 6: Final answer
    x = 118,724.49

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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.