Home / 127,267.60-190,901.40-89,869.90

Finding the Fourth Proportional to 127,267.60, 190,901.40 and 89,869.90

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Solution

The fourth proportional to 127,267.60, 190,901.40 and 89,869.90 is: 134,804.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,267.60 : 190,901.40 = 89,869.90 : x
  2. Step 2: Convert to fraction form
    127,267.60/190,901.40 = 89,869.90/x
  3. Step 3: Cross multiply
    127,267.60x = 190,901.40 × 89,869.90
  4. Step 4: Simplify right side
    127,267.60x = 17,156,289,727.86
  5. Step 5: Solve for x
    x = 17,156,289,727.86/127,267.60
  6. Step 6: Final answer
    x = 134,804.85

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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.