Home / 117,471.28-162,118.32-66,483.92

Finding the Fourth Proportional to 117,471.28, 162,118.32 and 66,483.92

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Solution

The fourth proportional to 117,471.28, 162,118.32 and 66,483.92 is: 91,752.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,471.28 : 162,118.32 = 66,483.92 : x
  2. Step 2: Convert to fraction form
    117,471.28/162,118.32 = 66,483.92/x
  3. Step 3: Cross multiply
    117,471.28x = 162,118.32 × 66,483.92
  4. Step 4: Simplify right side
    117,471.28x = 10,778,261,417.41
  5. Step 5: Solve for x
    x = 10,778,261,417.41/117,471.28
  6. Step 6: Final answer
    x = 91,752.31

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1.5x scale

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.