Home / 127,399.42-175,782.62-77,097.34

Finding the Fourth Proportional to 127,399.42, 175,782.62 and 77,097.34

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Solution

The fourth proportional to 127,399.42, 175,782.62 and 77,097.34 is: 106,377.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,399.42 : 175,782.62 = 77,097.34 : x
  2. Step 2: Convert to fraction form
    127,399.42/175,782.62 = 77,097.34/x
  3. Step 3: Cross multiply
    127,399.42x = 175,782.62 × 77,097.34
  4. Step 4: Simplify right side
    127,399.42x = 13,552,372,420.23
  5. Step 5: Solve for x
    x = 13,552,372,420.23/127,399.42
  6. Step 6: Final answer
    x = 106,377.03

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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.