Home / 109,569.44-151,068.72-91,446.32

Finding the Fourth Proportional to 109,569.44, 151,068.72 and 91,446.32

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Solution

The fourth proportional to 109,569.44, 151,068.72 and 91,446.32 is: 126,081.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,569.44 : 151,068.72 = 91,446.32 : x
  2. Step 2: Convert to fraction form
    109,569.44/151,068.72 = 91,446.32/x
  3. Step 3: Cross multiply
    109,569.44x = 151,068.72 × 91,446.32
  4. Step 4: Simplify right side
    109,569.44x = 13,814,678,511.11
  5. Step 5: Solve for x
    x = 13,814,678,511.11/109,569.44
  6. Step 6: Final answer
    x = 126,081.49

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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.