Home / 165,768.16-248,516.88-77,077.12

Finding the Fourth Proportional to 165,768.16, 248,516.88 and 77,077.12

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Solution

The fourth proportional to 165,768.16, 248,516.88 and 77,077.12 is: 115,552.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,768.16 : 248,516.88 = 77,077.12 : x
  2. Step 2: Convert to fraction form
    165,768.16/248,516.88 = 77,077.12/x
  3. Step 3: Cross multiply
    165,768.16x = 248,516.88 × 77,077.12
  4. Step 4: Simplify right side
    165,768.16x = 19,154,965,381.79
  5. Step 5: Solve for x
    x = 19,154,965,381.79/165,768.16
  6. Step 6: Final answer
    x = 115,552.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.