Home / 115,896.48-159,962.10-70,589.40

Finding the Fourth Proportional to 115,896.48, 159,962.10 and 70,589.40

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Solution

The fourth proportional to 115,896.48, 159,962.10 and 70,589.40 is: 97,428.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,896.48 : 159,962.10 = 70,589.40 : x
  2. Step 2: Convert to fraction form
    115,896.48/159,962.10 = 70,589.40/x
  3. Step 3: Cross multiply
    115,896.48x = 159,962.10 × 70,589.40
  4. Step 4: Simplify right side
    115,896.48x = 11,291,628,661.74
  5. Step 5: Solve for x
    x = 11,291,628,661.74/115,896.48
  6. Step 6: Final answer
    x = 97,428.57

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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.