Home / 145,214.40-217,821.60-109,732.80

Finding the Fourth Proportional to 145,214.40, 217,821.60 and 109,732.80

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Solution

The fourth proportional to 145,214.40, 217,821.60 and 109,732.80 is: 164,599.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,214.40 : 217,821.60 = 109,732.80 : x
  2. Step 2: Convert to fraction form
    145,214.40/217,821.60 = 109,732.80/x
  3. Step 3: Cross multiply
    145,214.40x = 217,821.60 × 109,732.80
  4. Step 4: Simplify right side
    145,214.40x = 23,902,174,068.48
  5. Step 5: Solve for x
    x = 23,902,174,068.48/145,214.40
  6. Step 6: Final answer
    x = 164,599.20

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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.