Home / 115,282.76-159,090.49-64,298.79

Finding the Fourth Proportional to 115,282.76, 159,090.49 and 64,298.79

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Solution

The fourth proportional to 115,282.76, 159,090.49 and 64,298.79 is: 88,732.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,282.76 : 159,090.49 = 64,298.79 : x
  2. Step 2: Convert to fraction form
    115,282.76/159,090.49 = 64,298.79/x
  3. Step 3: Cross multiply
    115,282.76x = 159,090.49 × 64,298.79
  4. Step 4: Simplify right side
    115,282.76x = 10,229,326,007.51
  5. Step 5: Solve for x
    x = 10,229,326,007.51/115,282.76
  6. Step 6: Final answer
    x = 88,732.49

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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.