Home / 157,844.48-217,822.64-86,222.66

Finding the Fourth Proportional to 157,844.48, 217,822.64 and 86,222.66

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Solution

The fourth proportional to 157,844.48, 217,822.64 and 86,222.66 is: 118,985.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,844.48 : 217,822.64 = 86,222.66 : x
  2. Step 2: Convert to fraction form
    157,844.48/217,822.64 = 86,222.66/x
  3. Step 3: Cross multiply
    157,844.48x = 217,822.64 × 86,222.66
  4. Step 4: Simplify right side
    157,844.48x = 18,781,247,429.02
  5. Step 5: Solve for x
    x = 18,781,247,429.02/157,844.48
  6. Step 6: Final answer
    x = 118,985.77

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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.