Home / 112,812.72-169,165.98-65,441.28

Finding the Fourth Proportional to 112,812.72, 169,165.98 and 65,441.28

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Solution

The fourth proportional to 112,812.72, 169,165.98 and 65,441.28 is: 98,131.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,812.72 : 169,165.98 = 65,441.28 : x
  2. Step 2: Convert to fraction form
    112,812.72/169,165.98 = 65,441.28/x
  3. Step 3: Cross multiply
    112,812.72x = 169,165.98 × 65,441.28
  4. Step 4: Simplify right side
    112,812.72x = 11,070,438,263.65
  5. Step 5: Solve for x
    x = 11,070,438,263.65/112,812.72
  6. Step 6: Final answer
    x = 98,131.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.