Home / 115,259.88-159,061.44-64,272.11

Finding the Fourth Proportional to 115,259.88, 159,061.44 and 64,272.11

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Solution

The fourth proportional to 115,259.88, 159,061.44 and 64,272.11 is: 88,697.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,259.88 : 159,061.44 = 64,272.11 : x
  2. Step 2: Convert to fraction form
    115,259.88/159,061.44 = 64,272.11/x
  3. Step 3: Cross multiply
    115,259.88x = 159,061.44 × 64,272.11
  4. Step 4: Simplify right side
    115,259.88x = 10,223,213,970.78
  5. Step 5: Solve for x
    x = 10,223,213,970.78/115,259.88
  6. Step 6: Final answer
    x = 88,697.08

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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.