Home / 112,742.96-155,600.52-64,995.44

Finding the Fourth Proportional to 112,742.96, 155,600.52 and 64,995.44

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Solution

The fourth proportional to 112,742.96, 155,600.52 and 64,995.44 is: 89,702.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,742.96 : 155,600.52 = 64,995.44 : x
  2. Step 2: Convert to fraction form
    112,742.96/155,600.52 = 64,995.44/x
  3. Step 3: Cross multiply
    112,742.96x = 155,600.52 × 64,995.44
  4. Step 4: Simplify right side
    112,742.96x = 10,113,324,261.63
  5. Step 5: Solve for x
    x = 10,113,324,261.63/112,742.96
  6. Step 6: Final answer
    x = 89,702.49

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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.