Home / 158,730.17-219,050.28-87,116.87

Finding the Fourth Proportional to 158,730.17, 219,050.28 and 87,116.87

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Solution

The fourth proportional to 158,730.17, 219,050.28 and 87,116.87 is: 120,222.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,730.17 : 219,050.28 = 87,116.87 : x
  2. Step 2: Convert to fraction form
    158,730.17/219,050.28 = 87,116.87/x
  3. Step 3: Cross multiply
    158,730.17x = 219,050.28 × 87,116.87
  4. Step 4: Simplify right side
    158,730.17x = 19,082,974,766.22
  5. Step 5: Solve for x
    x = 19,082,974,766.22/158,730.17
  6. Step 6: Final answer
    x = 120,222.73

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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.