Home / 145,219.40-217,829.10-109,737.80

Finding the Fourth Proportional to 145,219.40, 217,829.10 and 109,737.80

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Solution

The fourth proportional to 145,219.40, 217,829.10 and 109,737.80 is: 164,606.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,219.40 : 217,829.10 = 109,737.80 : x
  2. Step 2: Convert to fraction form
    145,219.40/217,829.10 = 109,737.80/x
  3. Step 3: Cross multiply
    145,219.40x = 217,829.10 × 109,737.80
  4. Step 4: Simplify right side
    145,219.40x = 23,904,086,209.98
  5. Step 5: Solve for x
    x = 23,904,086,209.98/145,219.40
  6. Step 6: Final answer
    x = 164,606.70

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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.