Home / 112,840.32-155,705.28-65,093.76

Finding the Fourth Proportional to 112,840.32, 155,705.28 and 65,093.76

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Solution

The fourth proportional to 112,840.32, 155,705.28 and 65,093.76 is: 89,821.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,840.32 : 155,705.28 = 65,093.76 : x
  2. Step 2: Convert to fraction form
    112,840.32/155,705.28 = 65,093.76/x
  3. Step 3: Cross multiply
    112,840.32x = 155,705.28 × 65,093.76
  4. Step 4: Simplify right side
    112,840.32x = 10,135,442,127.05
  5. Step 5: Solve for x
    x = 10,135,442,127.05/112,840.32
  6. Step 6: Final answer
    x = 89,821.10

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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.