Home / 117,891.60-162,688.72-64,177.06

Finding the Fourth Proportional to 117,891.60, 162,688.72 and 64,177.06

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Solution

The fourth proportional to 117,891.60, 162,688.72 and 64,177.06 is: 88,563.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,891.60 : 162,688.72 = 64,177.06 : x
  2. Step 2: Convert to fraction form
    117,891.60/162,688.72 = 64,177.06/x
  3. Step 3: Cross multiply
    117,891.60x = 162,688.72 × 64,177.06
  4. Step 4: Simplify right side
    117,891.60x = 10,440,883,744.76
  5. Step 5: Solve for x
    x = 10,440,883,744.76/117,891.60
  6. Step 6: Final answer
    x = 88,563.42

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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.