Home / 456,764.19-685,192.32-157,205.40

Finding the Fourth Proportional to 456,764.19, 685,192.32 and 157,205.40

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Solution

The fourth proportional to 456,764.19, 685,192.32 and 157,205.40 is: 235,823.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,764.19 : 685,192.32 = 157,205.40 : x
  2. Step 2: Convert to fraction form
    456,764.19/685,192.32 = 157,205.40/x
  3. Step 3: Cross multiply
    456,764.19x = 685,192.32 × 157,205.40
  4. Step 4: Simplify right side
    456,764.19x = 107,715,932,742.53
  5. Step 5: Solve for x
    x = 107,715,932,742.53/456,764.19
  6. Step 6: Final answer
    x = 235,823.94

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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.