Home / 112,481.48-155,185.14-72,192.20

Finding the Fourth Proportional to 112,481.48, 155,185.14 and 72,192.20

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Solution

The fourth proportional to 112,481.48, 155,185.14 and 72,192.20 is: 99,600.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,481.48 : 155,185.14 = 72,192.20 : x
  2. Step 2: Convert to fraction form
    112,481.48/155,185.14 = 72,192.20/x
  3. Step 3: Cross multiply
    112,481.48x = 155,185.14 × 72,192.20
  4. Step 4: Simplify right side
    112,481.48x = 11,203,156,663.91
  5. Step 5: Solve for x
    x = 11,203,156,663.91/112,481.48
  6. Step 6: Final answer
    x = 99,600.01

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1.5x scale

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.