Home / 112,130.48-154,733.28-64,379.36

Finding the Fourth Proportional to 112,130.48, 154,733.28 and 64,379.36

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Solution

The fourth proportional to 112,130.48, 154,733.28 and 64,379.36 is: 88,839.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,130.48 : 154,733.28 = 64,379.36 : x
  2. Step 2: Convert to fraction form
    112,130.48/154,733.28 = 64,379.36/x
  3. Step 3: Cross multiply
    112,130.48x = 154,733.28 × 64,379.36
  4. Step 4: Simplify right side
    112,130.48x = 9,961,629,537.10
  5. Step 5: Solve for x
    x = 9,961,629,537.10/112,130.48
  6. Step 6: Final answer
    x = 88,839.62

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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.