Home / 112,461.54-155,192.34-64,716.60

Finding the Fourth Proportional to 112,461.54, 155,192.34 and 64,716.60

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Solution

The fourth proportional to 112,461.54, 155,192.34 and 64,716.60 is: 89,306.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,461.54 : 155,192.34 = 64,716.60 : x
  2. Step 2: Convert to fraction form
    112,461.54/155,192.34 = 64,716.60/x
  3. Step 3: Cross multiply
    112,461.54x = 155,192.34 × 64,716.60
  4. Step 4: Simplify right side
    112,461.54x = 10,043,520,590.84
  5. Step 5: Solve for x
    x = 10,043,520,590.84/112,461.54
  6. Step 6: Final answer
    x = 89,306.27

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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.