Home / 144,801.12-217,172.52-39,630.72

Finding the Fourth Proportional to 144,801.12, 217,172.52 and 39,630.72

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Solution

The fourth proportional to 144,801.12, 217,172.52 and 39,630.72 is: 59,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,801.12 : 217,172.52 = 39,630.72 : x
  2. Step 2: Convert to fraction form
    144,801.12/217,172.52 = 39,630.72/x
  3. Step 3: Cross multiply
    144,801.12x = 217,172.52 × 39,630.72
  4. Step 4: Simplify right side
    144,801.12x = 8,606,703,331.81
  5. Step 5: Solve for x
    x = 8,606,703,331.81/144,801.12
  6. Step 6: Final answer
    x = 59,438.10

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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.