Home / 117,479.02-162,116.70-63,762.88

Finding the Fourth Proportional to 117,479.02, 162,116.70 and 63,762.88

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Solution

The fourth proportional to 117,479.02, 162,116.70 and 63,762.88 is: 87,990.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,479.02 : 162,116.70 = 63,762.88 : x
  2. Step 2: Convert to fraction form
    117,479.02/162,116.70 = 63,762.88/x
  3. Step 3: Cross multiply
    117,479.02x = 162,116.70 × 63,762.88
  4. Step 4: Simplify right side
    117,479.02x = 10,337,027,688.10
  5. Step 5: Solve for x
    x = 10,337,027,688.10/117,479.02
  6. Step 6: Final answer
    x = 87,990.41

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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.