Home / 127,077.40-190,678.20-89,876.52

Finding the Fourth Proportional to 127,077.40, 190,678.20 and 89,876.52

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Solution

The fourth proportional to 127,077.40, 190,678.20 and 89,876.52 is: 134,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,077.40 : 190,678.20 = 89,876.52 : x
  2. Step 2: Convert to fraction form
    127,077.40/190,678.20 = 89,876.52/x
  3. Step 3: Cross multiply
    127,077.40x = 190,678.20 × 89,876.52
  4. Step 4: Simplify right side
    127,077.40x = 17,137,493,055.86
  5. Step 5: Solve for x
    x = 17,137,493,055.86/127,077.40
  6. Step 6: Final answer
    x = 134,858.70

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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.