Home / 112,002.46-168,069.84-40,918.78

Finding the Fourth Proportional to 112,002.46, 168,069.84 and 40,918.78

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Solution

The fourth proportional to 112,002.46, 168,069.84 and 40,918.78 is: 61,402.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,002.46 : 168,069.84 = 40,918.78 : x
  2. Step 2: Convert to fraction form
    112,002.46/168,069.84 = 40,918.78/x
  3. Step 3: Cross multiply
    112,002.46x = 168,069.84 × 40,918.78
  4. Step 4: Simplify right side
    112,002.46x = 6,877,212,807.60
  5. Step 5: Solve for x
    x = 6,877,212,807.60/112,002.46
  6. Step 6: Final answer
    x = 61,402.34

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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.