Home / 123,639.53-170,622.63-67,050.90

Finding the Fourth Proportional to 123,639.53, 170,622.63 and 67,050.90

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Solution

The fourth proportional to 123,639.53, 170,622.63 and 67,050.90 is: 92,530.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,639.53 : 170,622.63 = 67,050.90 : x
  2. Step 2: Convert to fraction form
    123,639.53/170,622.63 = 67,050.90/x
  3. Step 3: Cross multiply
    123,639.53x = 170,622.63 × 67,050.90
  4. Step 4: Simplify right side
    123,639.53x = 11,440,400,901.87
  5. Step 5: Solve for x
    x = 11,440,400,901.87/123,639.53
  6. Step 6: Final answer
    x = 92,530.29

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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.