Home / 127,931.60-191,724.60-113,070.80

Finding the Fourth Proportional to 127,931.60, 191,724.60 and 113,070.80

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Solution

The fourth proportional to 127,931.60, 191,724.60 and 113,070.80 is: 169,453.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,931.60 : 191,724.60 = 113,070.80 : x
  2. Step 2: Convert to fraction form
    127,931.60/191,724.60 = 113,070.80/x
  3. Step 3: Cross multiply
    127,931.60x = 191,724.60 × 113,070.80
  4. Step 4: Simplify right side
    127,931.60x = 21,678,453,901.68
  5. Step 5: Solve for x
    x = 21,678,453,901.68/127,931.60
  6. Step 6: Final answer
    x = 169,453.47

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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.