Home / 112,520.64-155,293.92-67,800

Finding the Fourth Proportional to 112,520.64, 155,293.92 and 67,800

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Solution

The fourth proportional to 112,520.64, 155,293.92 and 67,800 is: 93,573.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,520.64 : 155,293.92 = 67,800 : x
  2. Step 2: Convert to fraction form
    112,520.64/155,293.92 = 67,800/x
  3. Step 3: Cross multiply
    112,520.64x = 155,293.92 × 67,800
  4. Step 4: Simplify right side
    112,520.64x = 10,528,927,776
  5. Step 5: Solve for x
    x = 10,528,927,776/112,520.64
  6. Step 6: Final answer
    x = 93,573.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.