Home / 112,822.20-169,298.10-42,751.80

Finding the Fourth Proportional to 112,822.20, 169,298.10 and 42,751.80

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Solution

The fourth proportional to 112,822.20, 169,298.10 and 42,751.80 is: 64,152.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,822.20 : 169,298.10 = 42,751.80 : x
  2. Step 2: Convert to fraction form
    112,822.20/169,298.10 = 42,751.80/x
  3. Step 3: Cross multiply
    112,822.20x = 169,298.10 × 42,751.80
  4. Step 4: Simplify right side
    112,822.20x = 7,237,798,511.58
  5. Step 5: Solve for x
    x = 7,237,798,511.58/112,822.20
  6. Step 6: Final answer
    x = 64,152.25

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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.