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Finding the Fourth Proportional to 144,029.60, 216,015.60 and 69,149.60

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Solution

The fourth proportional to 144,029.60, 216,015.60 and 69,149.60 is: 103,710.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,029.60 : 216,015.60 = 69,149.60 : x
  2. Step 2: Convert to fraction form
    144,029.60/216,015.60 = 69,149.60/x
  3. Step 3: Cross multiply
    144,029.60x = 216,015.60 × 69,149.60
  4. Step 4: Simplify right side
    144,029.60x = 14,937,392,333.76
  5. Step 5: Solve for x
    x = 14,937,392,333.76/144,029.60
  6. Step 6: Final answer
    x = 103,710.57

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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.