Home / 115,938.84-159,998.16-64,955.34

Finding the Fourth Proportional to 115,938.84, 159,998.16 and 64,955.34

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Solution

The fourth proportional to 115,938.84, 159,998.16 and 64,955.34 is: 89,639.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,938.84 : 159,998.16 = 64,955.34 : x
  2. Step 2: Convert to fraction form
    115,938.84/159,998.16 = 64,955.34/x
  3. Step 3: Cross multiply
    115,938.84x = 159,998.16 × 64,955.34
  4. Step 4: Simplify right side
    115,938.84x = 10,392,734,882.17
  5. Step 5: Solve for x
    x = 10,392,734,882.17/115,938.84
  6. Step 6: Final answer
    x = 89,639.80

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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.