Home / 147,168.48-203,086.36-83,509.76

Finding the Fourth Proportional to 147,168.48, 203,086.36 and 83,509.76

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Solution

The fourth proportional to 147,168.48, 203,086.36 and 83,509.76 is: 115,239.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,168.48 : 203,086.36 = 83,509.76 : x
  2. Step 2: Convert to fraction form
    147,168.48/203,086.36 = 83,509.76/x
  3. Step 3: Cross multiply
    147,168.48x = 203,086.36 × 83,509.76
  4. Step 4: Simplify right side
    147,168.48x = 16,959,693,182.87
  5. Step 5: Solve for x
    x = 16,959,693,182.87/147,168.48
  6. Step 6: Final answer
    x = 115,239.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.