Home / 127,012.17-190,144.55-84,787.53

Finding the Fourth Proportional to 127,012.17, 190,144.55 and 84,787.53

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Solution

The fourth proportional to 127,012.17, 190,144.55 and 84,787.53 is: 126,931.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,012.17 : 190,144.55 = 84,787.53 : x
  2. Step 2: Convert to fraction form
    127,012.17/190,144.55 = 84,787.53/x
  3. Step 3: Cross multiply
    127,012.17x = 190,144.55 × 84,787.53
  4. Step 4: Simplify right side
    127,012.17x = 16,121,886,236.39
  5. Step 5: Solve for x
    x = 16,121,886,236.39/127,012.17
  6. Step 6: Final answer
    x = 126,931.82

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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.