Home / 117,051.28-161,530.32-63,336.40

Finding the Fourth Proportional to 117,051.28, 161,530.32 and 63,336.40

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Solution

The fourth proportional to 117,051.28, 161,530.32 and 63,336.40 is: 87,403.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,051.28 : 161,530.32 = 63,336.40 : x
  2. Step 2: Convert to fraction form
    117,051.28/161,530.32 = 63,336.40/x
  3. Step 3: Cross multiply
    117,051.28x = 161,530.32 × 63,336.40
  4. Step 4: Simplify right side
    117,051.28x = 10,230,748,959.65
  5. Step 5: Solve for x
    x = 10,230,748,959.65/117,051.28
  6. Step 6: Final answer
    x = 87,403.99

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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.