Home / 131,437.40-197,156.10-117,440.60

Finding the Fourth Proportional to 131,437.40, 197,156.10 and 117,440.60

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Solution

The fourth proportional to 131,437.40, 197,156.10 and 117,440.60 is: 176,160.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,437.40 : 197,156.10 = 117,440.60 : x
  2. Step 2: Convert to fraction form
    131,437.40/197,156.10 = 117,440.60/x
  3. Step 3: Cross multiply
    131,437.40x = 197,156.10 × 117,440.60
  4. Step 4: Simplify right side
    131,437.40x = 23,154,130,677.66
  5. Step 5: Solve for x
    x = 23,154,130,677.66/131,437.40
  6. Step 6: Final answer
    x = 176,160.90

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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.