Home / 112,742.28-169,033.23-56,541.78

Finding the Fourth Proportional to 112,742.28, 169,033.23 and 56,541.78

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Solution

The fourth proportional to 112,742.28, 169,033.23 and 56,541.78 is: 84,772.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,742.28 : 169,033.23 = 56,541.78 : x
  2. Step 2: Convert to fraction form
    112,742.28/169,033.23 = 56,541.78/x
  3. Step 3: Cross multiply
    112,742.28x = 169,033.23 × 56,541.78
  4. Step 4: Simplify right side
    112,742.28x = 9,557,439,703.35
  5. Step 5: Solve for x
    x = 9,557,439,703.35/112,742.28
  6. Step 6: Final answer
    x = 84,772.45

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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.