Home / 112,679.37-155,602.88-72,462.96

Finding the Fourth Proportional to 112,679.37, 155,602.88 and 72,462.96

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Solution

The fourth proportional to 112,679.37, 155,602.88 and 72,462.96 is: 100,066.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,679.37 : 155,602.88 = 72,462.96 : x
  2. Step 2: Convert to fraction form
    112,679.37/155,602.88 = 72,462.96/x
  3. Step 3: Cross multiply
    112,679.37x = 155,602.88 × 72,462.96
  4. Step 4: Simplify right side
    112,679.37x = 11,275,445,269.32
  5. Step 5: Solve for x
    x = 11,275,445,269.32/112,679.37
  6. Step 6: Final answer
    x = 100,066.63

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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.