Home / 112,178.01-154,490.72-109,728.57

Finding the Fourth Proportional to 112,178.01, 154,490.72 and 109,728.57

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Solution

The fourth proportional to 112,178.01, 154,490.72 and 109,728.57 is: 151,117.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,178.01 : 154,490.72 = 109,728.57 : x
  2. Step 2: Convert to fraction form
    112,178.01/154,490.72 = 109,728.57/x
  3. Step 3: Cross multiply
    112,178.01x = 154,490.72 × 109,728.57
  4. Step 4: Simplify right side
    112,178.01x = 16,952,045,235.23
  5. Step 5: Solve for x
    x = 16,952,045,235.23/112,178.01
  6. Step 6: Final answer
    x = 151,117.36

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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.