Home / 156,784.66-235,176.99-68,036.20

Finding the Fourth Proportional to 156,784.66, 235,176.99 and 68,036.20

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Solution

The fourth proportional to 156,784.66, 235,176.99 and 68,036.20 is: 102,054.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,784.66 : 235,176.99 = 68,036.20 : x
  2. Step 2: Convert to fraction form
    156,784.66/235,176.99 = 68,036.20/x
  3. Step 3: Cross multiply
    156,784.66x = 235,176.99 × 68,036.20
  4. Step 4: Simplify right side
    156,784.66x = 16,000,549,780.89
  5. Step 5: Solve for x
    x = 16,000,549,780.89/156,784.66
  6. Step 6: Final answer
    x = 102,054.30

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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.