Home / 207,619.66-286,515.10-112,126.35

Finding the Fourth Proportional to 207,619.66, 286,515.10 and 112,126.35

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Solution

The fourth proportional to 207,619.66, 286,515.10 and 112,126.35 is: 154,734.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,619.66 : 286,515.10 = 112,126.35 : x
  2. Step 2: Convert to fraction form
    207,619.66/286,515.10 = 112,126.35/x
  3. Step 3: Cross multiply
    207,619.66x = 286,515.10 × 112,126.35
  4. Step 4: Simplify right side
    207,619.66x = 32,125,892,382.89
  5. Step 5: Solve for x
    x = 32,125,892,382.89/207,619.66
  6. Step 6: Final answer
    x = 154,734.35

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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.