Home / 99,132.48-136,828.08-56,704.32

Finding the Fourth Proportional to 99,132.48, 136,828.08 and 56,704.32

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Solution

The fourth proportional to 99,132.48, 136,828.08 and 56,704.32 is: 78,266.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,132.48 : 136,828.08 = 56,704.32 : x
  2. Step 2: Convert to fraction form
    99,132.48/136,828.08 = 56,704.32/x
  3. Step 3: Cross multiply
    99,132.48x = 136,828.08 × 56,704.32
  4. Step 4: Simplify right side
    99,132.48x = 7,758,743,233.31
  5. Step 5: Solve for x
    x = 7,758,743,233.31/99,132.48
  6. Step 6: Final answer
    x = 78,266.41

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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.