Home / 112,678.02-169,022.50-92,920.50

Finding the Fourth Proportional to 112,678.02, 169,022.50 and 92,920.50

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Solution

The fourth proportional to 112,678.02, 169,022.50 and 92,920.50 is: 139,385.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,678.02 : 169,022.50 = 92,920.50 : x
  2. Step 2: Convert to fraction form
    112,678.02/169,022.50 = 92,920.50/x
  3. Step 3: Cross multiply
    112,678.02x = 169,022.50 × 92,920.50
  4. Step 4: Simplify right side
    112,678.02x = 15,705,654,978.95
  5. Step 5: Solve for x
    x = 15,705,654,978.95/112,678.02
  6. Step 6: Final answer
    x = 139,385.26

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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.