Home / 97,171.20-134,129.81-56,897.91

Finding the Fourth Proportional to 97,171.20, 134,129.81 and 56,897.91

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Solution

The fourth proportional to 97,171.20, 134,129.81 and 56,897.91 is: 78,538.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,171.20 : 134,129.81 = 56,897.91 : x
  2. Step 2: Convert to fraction form
    97,171.20/134,129.81 = 56,897.91/x
  3. Step 3: Cross multiply
    97,171.20x = 134,129.81 × 56,897.91
  4. Step 4: Simplify right side
    97,171.20x = 7,631,705,857.70
  5. Step 5: Solve for x
    x = 7,631,705,857.70/97,171.20
  6. Step 6: Final answer
    x = 78,538.76

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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.