Home / 158,868.20-219,237.87-87,248.22

Finding the Fourth Proportional to 158,868.20, 219,237.87 and 87,248.22

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Solution

The fourth proportional to 158,868.20, 219,237.87 and 87,248.22 is: 120,402.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,868.20 : 219,237.87 = 87,248.22 : x
  2. Step 2: Convert to fraction form
    158,868.20/219,237.87 = 87,248.22/x
  3. Step 3: Cross multiply
    158,868.20x = 219,237.87 × 87,248.22
  4. Step 4: Simplify right side
    158,868.20x = 19,128,113,914.09
  5. Step 5: Solve for x
    x = 19,128,113,914.09/158,868.20
  6. Step 6: Final answer
    x = 120,402.41

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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.