Home / 117,457.29-162,091.17-63,742.31

Finding the Fourth Proportional to 117,457.29, 162,091.17 and 63,742.31

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Solution

The fourth proportional to 117,457.29, 162,091.17 and 63,742.31 is: 87,964.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,457.29 : 162,091.17 = 63,742.31 : x
  2. Step 2: Convert to fraction form
    117,457.29/162,091.17 = 63,742.31/x
  3. Step 3: Cross multiply
    117,457.29x = 162,091.17 × 63,742.31
  4. Step 4: Simplify right side
    117,457.29x = 10,332,065,606.40
  5. Step 5: Solve for x
    x = 10,332,065,606.40/117,457.29
  6. Step 6: Final answer
    x = 87,964.45

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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.