Home / 127,050.19-190,288.54-72,945.43

Finding the Fourth Proportional to 127,050.19, 190,288.54 and 72,945.43

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Solution

The fourth proportional to 127,050.19, 190,288.54 and 72,945.43 is: 109,253.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,050.19 : 190,288.54 = 72,945.43 : x
  2. Step 2: Convert to fraction form
    127,050.19/190,288.54 = 72,945.43/x
  3. Step 3: Cross multiply
    127,050.19x = 190,288.54 × 72,945.43
  4. Step 4: Simplify right side
    127,050.19x = 13,880,679,374.37
  5. Step 5: Solve for x
    x = 13,880,679,374.37/127,050.19
  6. Step 6: Final answer
    x = 109,253.51

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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.