Home / 122,640.31-183,983.28-42,674.95

Finding the Fourth Proportional to 122,640.31, 183,983.28 and 42,674.95

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Solution

The fourth proportional to 122,640.31, 183,983.28 and 42,674.95 is: 64,020.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,640.31 : 183,983.28 = 42,674.95 : x
  2. Step 2: Convert to fraction form
    122,640.31/183,983.28 = 42,674.95/x
  3. Step 3: Cross multiply
    122,640.31x = 183,983.28 × 42,674.95
  4. Step 4: Simplify right side
    122,640.31x = 7,851,477,274.84
  5. Step 5: Solve for x
    x = 7,851,477,274.84/122,640.31
  6. Step 6: Final answer
    x = 64,020.36

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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.