Home / 176,631.17-243,745.80-100,157.25

Finding the Fourth Proportional to 176,631.17, 243,745.80 and 100,157.25

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Solution

The fourth proportional to 176,631.17, 243,745.80 and 100,157.25 is: 138,214.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,631.17 : 243,745.80 = 100,157.25 : x
  2. Step 2: Convert to fraction form
    176,631.17/243,745.80 = 100,157.25/x
  3. Step 3: Cross multiply
    176,631.17x = 243,745.80 × 100,157.25
  4. Step 4: Simplify right side
    176,631.17x = 24,412,907,808.32
  5. Step 5: Solve for x
    x = 24,412,907,808.32/176,631.17
  6. Step 6: Final answer
    x = 138,214.05

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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.