Home / 115,298.89-159,105.61-66,897.07

Finding the Fourth Proportional to 115,298.89, 159,105.61 and 66,897.07

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Solution

The fourth proportional to 115,298.89, 159,105.61 and 66,897.07 is: 92,313.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,298.89 : 159,105.61 = 66,897.07 : x
  2. Step 2: Convert to fraction form
    115,298.89/159,105.61 = 66,897.07/x
  3. Step 3: Cross multiply
    115,298.89x = 159,105.61 × 66,897.07
  4. Step 4: Simplify right side
    115,298.89x = 10,643,698,564.56
  5. Step 5: Solve for x
    x = 10,643,698,564.56/115,298.89
  6. Step 6: Final answer
    x = 92,313.97

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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.