Home / 157,743.36-217,710.84-100,322.82

Finding the Fourth Proportional to 157,743.36, 217,710.84 and 100,322.82

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Solution

The fourth proportional to 157,743.36, 217,710.84 and 100,322.82 is: 138,461.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,743.36 : 217,710.84 = 100,322.82 : x
  2. Step 2: Convert to fraction form
    157,743.36/217,710.84 = 100,322.82/x
  3. Step 3: Cross multiply
    157,743.36x = 217,710.84 × 100,322.82
  4. Step 4: Simplify right side
    157,743.36x = 21,841,365,413.37
  5. Step 5: Solve for x
    x = 21,841,365,413.37/157,743.36
  6. Step 6: Final answer
    x = 138,461.39

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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.