Home / 115,617.18-159,548.36-64,630

Finding the Fourth Proportional to 115,617.18, 159,548.36 and 64,630

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Solution

The fourth proportional to 115,617.18, 159,548.36 and 64,630 is: 89,187.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,617.18 : 159,548.36 = 64,630 : x
  2. Step 2: Convert to fraction form
    115,617.18/159,548.36 = 64,630/x
  3. Step 3: Cross multiply
    115,617.18x = 159,548.36 × 64,630
  4. Step 4: Simplify right side
    115,617.18x = 10,311,610,506.80
  5. Step 5: Solve for x
    x = 10,311,610,506.80/115,617.18
  6. Step 6: Final answer
    x = 89,187.53

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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.