Home / 145,135.80-217,703.70-109,706.40

Finding the Fourth Proportional to 145,135.80, 217,703.70 and 109,706.40

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Solution

The fourth proportional to 145,135.80, 217,703.70 and 109,706.40 is: 164,559.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,135.80 : 217,703.70 = 109,706.40 : x
  2. Step 2: Convert to fraction form
    145,135.80/217,703.70 = 109,706.40/x
  3. Step 3: Cross multiply
    145,135.80x = 217,703.70 × 109,706.40
  4. Step 4: Simplify right side
    145,135.80x = 23,883,489,193.68
  5. Step 5: Solve for x
    x = 23,883,489,193.68/145,135.80
  6. Step 6: Final answer
    x = 164,559.60

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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.