Home / 112,261.10-154,946.94-64,542.20

Finding the Fourth Proportional to 112,261.10, 154,946.94 and 64,542.20

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Solution

The fourth proportional to 112,261.10, 154,946.94 and 64,542.20 is: 89,083.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,261.10 : 154,946.94 = 64,542.20 : x
  2. Step 2: Convert to fraction form
    112,261.10/154,946.94 = 64,542.20/x
  3. Step 3: Cross multiply
    112,261.10x = 154,946.94 × 64,542.20
  4. Step 4: Simplify right side
    112,261.10x = 10,000,616,390.87
  5. Step 5: Solve for x
    x = 10,000,616,390.87/112,261.10
  6. Step 6: Final answer
    x = 89,083.54

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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.