Home / 131,710.18-197,365.71-87,177.39

Finding the Fourth Proportional to 131,710.18, 197,365.71 and 87,177.39

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Solution

The fourth proportional to 131,710.18, 197,365.71 and 87,177.39 is: 130,634.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,710.18 : 197,365.71 = 87,177.39 : x
  2. Step 2: Convert to fraction form
    131,710.18/197,365.71 = 87,177.39/x
  3. Step 3: Cross multiply
    131,710.18x = 197,365.71 × 87,177.39
  4. Step 4: Simplify right side
    131,710.18x = 17,205,827,530.82
  5. Step 5: Solve for x
    x = 17,205,827,530.82/131,710.18
  6. Step 6: Final answer
    x = 130,634.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.