Home / 112,414.02-155,203.66-72,145.14

Finding the Fourth Proportional to 112,414.02, 155,203.66 and 72,145.14

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Solution

The fourth proportional to 112,414.02, 155,203.66 and 72,145.14 is: 99,606.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,414.02 : 155,203.66 = 72,145.14 : x
  2. Step 2: Convert to fraction form
    112,414.02/155,203.66 = 72,145.14/x
  3. Step 3: Cross multiply
    112,414.02x = 155,203.66 × 72,145.14
  4. Step 4: Simplify right side
    112,414.02x = 11,197,188,822.83
  5. Step 5: Solve for x
    x = 11,197,188,822.83/112,414.02
  6. Step 6: Final answer
    x = 99,606.70

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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.