Home / 212,785.74-293,639.94-115,988.76

Finding the Fourth Proportional to 212,785.74, 293,639.94 and 115,988.76

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Solution

The fourth proportional to 212,785.74, 293,639.94 and 115,988.76 is: 160,062.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,785.74 : 293,639.94 = 115,988.76 : x
  2. Step 2: Convert to fraction form
    212,785.74/293,639.94 = 115,988.76/x
  3. Step 3: Cross multiply
    212,785.74x = 293,639.94 × 115,988.76
  4. Step 4: Simplify right side
    212,785.74x = 34,058,932,527.07
  5. Step 5: Solve for x
    x = 34,058,932,527.07/212,785.74
  6. Step 6: Final answer
    x = 160,062.10

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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.