Home / 115,459.49-159,320.03-64,475.06

Finding the Fourth Proportional to 115,459.49, 159,320.03 and 64,475.06

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Solution

The fourth proportional to 115,459.49, 159,320.03 and 64,475.06 is: 88,967.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,459.49 : 159,320.03 = 64,475.06 : x
  2. Step 2: Convert to fraction form
    115,459.49/159,320.03 = 64,475.06/x
  3. Step 3: Cross multiply
    115,459.49x = 159,320.03 × 64,475.06
  4. Step 4: Simplify right side
    115,459.49x = 10,272,167,374.48
  5. Step 5: Solve for x
    x = 10,272,167,374.48/115,459.49
  6. Step 6: Final answer
    x = 88,967.72

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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.