Home / 158,744.97-219,081.50-87,137.12

Finding the Fourth Proportional to 158,744.97, 219,081.50 and 87,137.12

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Solution

The fourth proportional to 158,744.97, 219,081.50 and 87,137.12 is: 120,256.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,744.97 : 219,081.50 = 87,137.12 : x
  2. Step 2: Convert to fraction form
    158,744.97/219,081.50 = 87,137.12/x
  3. Step 3: Cross multiply
    158,744.97x = 219,081.50 × 87,137.12
  4. Step 4: Simplify right side
    158,744.97x = 19,090,130,955.28
  5. Step 5: Solve for x
    x = 19,090,130,955.28/158,744.97
  6. Step 6: Final answer
    x = 120,256.60

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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.