Home / 112,903.88-169,355.90-28,670.36

Finding the Fourth Proportional to 112,903.88, 169,355.90 and 28,670.36

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Solution

The fourth proportional to 112,903.88, 169,355.90 and 28,670.36 is: 43,005.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,903.88 : 169,355.90 = 28,670.36 : x
  2. Step 2: Convert to fraction form
    112,903.88/169,355.90 = 28,670.36/x
  3. Step 3: Cross multiply
    112,903.88x = 169,355.90 × 28,670.36
  4. Step 4: Simplify right side
    112,903.88x = 4,855,494,901.16
  5. Step 5: Solve for x
    x = 4,855,494,901.16/112,903.88
  6. Step 6: Final answer
    x = 43,005.56

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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.