Home / 112,649.12-155,445.23-67,318.07

Finding the Fourth Proportional to 112,649.12, 155,445.23 and 67,318.07

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Solution

The fourth proportional to 112,649.12, 155,445.23 and 67,318.07 is: 92,892.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,649.12 : 155,445.23 = 67,318.07 : x
  2. Step 2: Convert to fraction form
    112,649.12/155,445.23 = 67,318.07/x
  3. Step 3: Cross multiply
    112,649.12x = 155,445.23 × 67,318.07
  4. Step 4: Simplify right side
    112,649.12x = 10,464,271,760.49
  5. Step 5: Solve for x
    x = 10,464,271,760.49/112,649.12
  6. Step 6: Final answer
    x = 92,892.62

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1.5x scale

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.