Home / 170,783.28-255,999.90-71,001.36

Finding the Fourth Proportional to 170,783.28, 255,999.90 and 71,001.36

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Solution

The fourth proportional to 170,783.28, 255,999.90 and 71,001.36 is: 106,429.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,783.28 : 255,999.90 = 71,001.36 : x
  2. Step 2: Convert to fraction form
    170,783.28/255,999.90 = 71,001.36/x
  3. Step 3: Cross multiply
    170,783.28x = 255,999.90 × 71,001.36
  4. Step 4: Simplify right side
    170,783.28x = 18,176,341,059.86
  5. Step 5: Solve for x
    x = 18,176,341,059.86/170,783.28
  6. Step 6: Final answer
    x = 106,429.28

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1.5x scale

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.