Home / 158,808.15-219,155.60-87,192.79

Finding the Fourth Proportional to 158,808.15, 219,155.60 and 87,192.79

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Solution

The fourth proportional to 158,808.15, 219,155.60 and 87,192.79 is: 120,326.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,808.15 : 219,155.60 = 87,192.79 : x
  2. Step 2: Convert to fraction form
    158,808.15/219,155.60 = 87,192.79/x
  3. Step 3: Cross multiply
    158,808.15x = 219,155.60 × 87,192.79
  4. Step 4: Simplify right side
    158,808.15x = 19,108,787,878.22
  5. Step 5: Solve for x
    x = 19,108,787,878.22/158,808.15
  6. Step 6: Final answer
    x = 120,326.24

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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.