Home / 144,965.40-217,448.10-39,784.20

Finding the Fourth Proportional to 144,965.40, 217,448.10 and 39,784.20

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Solution

The fourth proportional to 144,965.40, 217,448.10 and 39,784.20 is: 59,676.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,965.40 : 217,448.10 = 39,784.20 : x
  2. Step 2: Convert to fraction form
    144,965.40/217,448.10 = 39,784.20/x
  3. Step 3: Cross multiply
    144,965.40x = 217,448.10 × 39,784.20
  4. Step 4: Simplify right side
    144,965.40x = 8,650,998,700.02
  5. Step 5: Solve for x
    x = 8,650,998,700.02/144,965.40
  6. Step 6: Final answer
    x = 59,676.30

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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.