Home / 197,178.10-272,237.15-116,631.50

Finding the Fourth Proportional to 197,178.10, 272,237.15 and 116,631.50

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Solution

The fourth proportional to 197,178.10, 272,237.15 and 116,631.50 is: 161,029.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,178.10 : 272,237.15 = 116,631.50 : x
  2. Step 2: Convert to fraction form
    197,178.10/272,237.15 = 116,631.50/x
  3. Step 3: Cross multiply
    197,178.10x = 272,237.15 × 116,631.50
  4. Step 4: Simplify right side
    197,178.10x = 31,751,426,090.62
  5. Step 5: Solve for x
    x = 31,751,426,090.62/197,178.10
  6. Step 6: Final answer
    x = 161,029.17

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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.