Home / 175,048.80-262,112.40-128,047.20

Finding the Fourth Proportional to 175,048.80, 262,112.40 and 128,047.20

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Solution

The fourth proportional to 175,048.80, 262,112.40 and 128,047.20 is: 191,733.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,048.80 : 262,112.40 = 128,047.20 : x
  2. Step 2: Convert to fraction form
    175,048.80/262,112.40 = 128,047.20/x
  3. Step 3: Cross multiply
    175,048.80x = 262,112.40 × 128,047.20
  4. Step 4: Simplify right side
    175,048.80x = 33,562,758,905.28
  5. Step 5: Solve for x
    x = 33,562,758,905.28/175,048.80
  6. Step 6: Final answer
    x = 191,733.73

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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.