Home / 112,005.80-167,814.30-105,007.40

Finding the Fourth Proportional to 112,005.80, 167,814.30 and 105,007.40

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Solution

The fourth proportional to 112,005.80, 167,814.30 and 105,007.40 is: 157,328.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,005.80 : 167,814.30 = 105,007.40 : x
  2. Step 2: Convert to fraction form
    112,005.80/167,814.30 = 105,007.40/x
  3. Step 3: Cross multiply
    112,005.80x = 167,814.30 × 105,007.40
  4. Step 4: Simplify right side
    112,005.80x = 17,621,743,325.82
  5. Step 5: Solve for x
    x = 17,621,743,325.82/112,005.80
  6. Step 6: Final answer
    x = 157,328.85

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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.