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Finding the Fourth Proportional to 144,033.84, 216,128.34 and 70,161.84

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Solution

The fourth proportional to 144,033.84, 216,128.34 and 70,161.84 is: 105,280.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,033.84 : 216,128.34 = 70,161.84 : x
  2. Step 2: Convert to fraction form
    144,033.84/216,128.34 = 70,161.84/x
  3. Step 3: Cross multiply
    144,033.84x = 216,128.34 × 70,161.84
  4. Step 4: Simplify right side
    144,033.84x = 15,163,962,010.55
  5. Step 5: Solve for x
    x = 15,163,962,010.55/144,033.84
  6. Step 6: Final answer
    x = 105,280.55

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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.