Home / 144,411.20-216,501.60-61,236.80

Finding the Fourth Proportional to 144,411.20, 216,501.60 and 61,236.80

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Solution

The fourth proportional to 144,411.20, 216,501.60 and 61,236.80 is: 91,806.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,411.20 : 216,501.60 = 61,236.80 : x
  2. Step 2: Convert to fraction form
    144,411.20/216,501.60 = 61,236.80/x
  3. Step 3: Cross multiply
    144,411.20x = 216,501.60 × 61,236.80
  4. Step 4: Simplify right side
    144,411.20x = 13,257,865,178.88
  5. Step 5: Solve for x
    x = 13,257,865,178.88/144,411.20
  6. Step 6: Final answer
    x = 91,806.35

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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.