Home / 112,161.65-168,274.25-45,649.51

Finding the Fourth Proportional to 112,161.65, 168,274.25 and 45,649.51

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Solution

The fourth proportional to 112,161.65, 168,274.25 and 45,649.51 is: 68,487.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,161.65 : 168,274.25 = 45,649.51 : x
  2. Step 2: Convert to fraction form
    112,161.65/168,274.25 = 45,649.51/x
  3. Step 3: Cross multiply
    112,161.65x = 168,274.25 × 45,649.51
  4. Step 4: Simplify right side
    112,161.65x = 7,681,636,580.37
  5. Step 5: Solve for x
    x = 7,681,636,580.37/112,161.65
  6. Step 6: Final answer
    x = 68,487.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.