Home / 115,298.78-159,116.27-66,897.05

Finding the Fourth Proportional to 115,298.78, 159,116.27 and 66,897.05

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Solution

The fourth proportional to 115,298.78, 159,116.27 and 66,897.05 is: 92,320.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,298.78 : 159,116.27 = 66,897.05 : x
  2. Step 2: Convert to fraction form
    115,298.78/159,116.27 = 66,897.05/x
  3. Step 3: Cross multiply
    115,298.78x = 159,116.27 × 66,897.05
  4. Step 4: Simplify right side
    115,298.78x = 10,644,407,939.94
  5. Step 5: Solve for x
    x = 10,644,407,939.94/115,298.78
  6. Step 6: Final answer
    x = 92,320.22

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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.