Home / 100,382.32-137,473.04-99,070.16

Finding the Fourth Proportional to 100,382.32, 137,473.04 and 99,070.16

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Solution

The fourth proportional to 100,382.32, 137,473.04 and 99,070.16 is: 135,676.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,382.32 : 137,473.04 = 99,070.16 : x
  2. Step 2: Convert to fraction form
    100,382.32/137,473.04 = 99,070.16/x
  3. Step 3: Cross multiply
    100,382.32x = 137,473.04 × 99,070.16
  4. Step 4: Simplify right side
    100,382.32x = 13,619,476,068.49
  5. Step 5: Solve for x
    x = 13,619,476,068.49/100,382.32
  6. Step 6: Final answer
    x = 135,676.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.