Home / 156,782.50-216,363.78-85,162.48

Finding the Fourth Proportional to 156,782.50, 216,363.78 and 85,162.48

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Solution

The fourth proportional to 156,782.50, 216,363.78 and 85,162.48 is: 117,526.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,782.50 : 216,363.78 = 85,162.48 : x
  2. Step 2: Convert to fraction form
    156,782.50/216,363.78 = 85,162.48/x
  3. Step 3: Cross multiply
    156,782.50x = 216,363.78 × 85,162.48
  4. Step 4: Simplify right side
    156,782.50x = 18,426,076,086.97
  5. Step 5: Solve for x
    x = 18,426,076,086.97/156,782.50
  6. Step 6: Final answer
    x = 117,526.36

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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.