Home / 158,760.12-219,091.80-87,146.81

Finding the Fourth Proportional to 158,760.12, 219,091.80 and 87,146.81

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Solution

The fourth proportional to 158,760.12, 219,091.80 and 87,146.81 is: 120,264.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,760.12 : 219,091.80 = 87,146.81 : x
  2. Step 2: Convert to fraction form
    158,760.12/219,091.80 = 87,146.81/x
  3. Step 3: Cross multiply
    158,760.12x = 219,091.80 × 87,146.81
  4. Step 4: Simplify right side
    158,760.12x = 19,093,151,467.16
  5. Step 5: Solve for x
    x = 19,093,151,467.16/158,760.12
  6. Step 6: Final answer
    x = 120,264.15

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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.