Home / 160,246.05-221,132.88-87,647.78

Finding the Fourth Proportional to 160,246.05, 221,132.88 and 87,647.78

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Solution

The fourth proportional to 160,246.05, 221,132.88 and 87,647.78 is: 120,950.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,246.05 : 221,132.88 = 87,647.78 : x
  2. Step 2: Convert to fraction form
    160,246.05/221,132.88 = 87,647.78/x
  3. Step 3: Cross multiply
    160,246.05x = 221,132.88 × 87,647.78
  4. Step 4: Simplify right side
    160,246.05x = 19,381,804,911.34
  5. Step 5: Solve for x
    x = 19,381,804,911.34/160,246.05
  6. Step 6: Final answer
    x = 120,950.28

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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.