Home / 163,450.49-245,189.84-45,121.85

Finding the Fourth Proportional to 163,450.49, 245,189.84 and 45,121.85

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Solution

The fourth proportional to 163,450.49, 245,189.84 and 45,121.85 is: 67,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,450.49 : 245,189.84 = 45,121.85 : x
  2. Step 2: Convert to fraction form
    163,450.49/245,189.84 = 45,121.85/x
  3. Step 3: Cross multiply
    163,450.49x = 245,189.84 × 45,121.85
  4. Step 4: Simplify right side
    163,450.49x = 11,063,417,730.45
  5. Step 5: Solve for x
    x = 11,063,417,730.45/163,450.49
  6. Step 6: Final answer
    x = 67,686.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.