Home / 207,719.46-286,661.21-117,079.20

Finding the Fourth Proportional to 207,719.46, 286,661.21 and 117,079.20

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Solution

The fourth proportional to 207,719.46, 286,661.21 and 117,079.20 is: 161,574.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,719.46 : 286,661.21 = 117,079.20 : x
  2. Step 2: Convert to fraction form
    207,719.46/286,661.21 = 117,079.20/x
  3. Step 3: Cross multiply
    207,719.46x = 286,661.21 × 117,079.20
  4. Step 4: Simplify right side
    207,719.46x = 33,562,065,137.83
  5. Step 5: Solve for x
    x = 33,562,065,137.83/207,719.46
  6. Step 6: Final answer
    x = 161,574.01

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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.