Home / 156,698.90-235,086.15-51,512.30

Finding the Fourth Proportional to 156,698.90, 235,086.15 and 51,512.30

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Solution

The fourth proportional to 156,698.90, 235,086.15 and 51,512.30 is: 77,280.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,698.90 : 235,086.15 = 51,512.30 : x
  2. Step 2: Convert to fraction form
    156,698.90/235,086.15 = 51,512.30/x
  3. Step 3: Cross multiply
    156,698.90x = 235,086.15 × 51,512.30
  4. Step 4: Simplify right side
    156,698.90x = 12,109,828,284.65
  5. Step 5: Solve for x
    x = 12,109,828,284.65/156,698.90
  6. Step 6: Final answer
    x = 77,280.88

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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.