Home / 158,729.35-219,050.10-87,113.95

Finding the Fourth Proportional to 158,729.35, 219,050.10 and 87,113.95

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Solution

The fourth proportional to 158,729.35, 219,050.10 and 87,113.95 is: 120,219.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,729.35 : 219,050.10 = 87,113.95 : x
  2. Step 2: Convert to fraction form
    158,729.35/219,050.10 = 87,113.95/x
  3. Step 3: Cross multiply
    158,729.35x = 219,050.10 × 87,113.95
  4. Step 4: Simplify right side
    158,729.35x = 19,082,319,458.90
  5. Step 5: Solve for x
    x = 19,082,319,458.90/158,729.35
  6. Step 6: Final answer
    x = 120,219.23

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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.