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Finding the Fourth Proportional to 144,135.84, 216,208.62 and 38,955.72

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Solution

The fourth proportional to 144,135.84, 216,208.62 and 38,955.72 is: 58,434.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,135.84 : 216,208.62 = 38,955.72 : x
  2. Step 2: Convert to fraction form
    144,135.84/216,208.62 = 38,955.72/x
  3. Step 3: Cross multiply
    144,135.84x = 216,208.62 × 38,955.72
  4. Step 4: Simplify right side
    144,135.84x = 8,422,562,462.31
  5. Step 5: Solve for x
    x = 8,422,562,462.31/144,135.84
  6. Step 6: Final answer
    x = 58,434.89

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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.