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Finding the Fourth Proportional to 144,626.88, 216,857.26 and 77,075.75

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Solution

The fourth proportional to 144,626.88, 216,857.26 and 77,075.75 is: 115,569.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,626.88 : 216,857.26 = 77,075.75 : x
  2. Step 2: Convert to fraction form
    144,626.88/216,857.26 = 77,075.75/x
  3. Step 3: Cross multiply
    144,626.88x = 216,857.26 × 77,075.75
  4. Step 4: Simplify right side
    144,626.88x = 16,714,435,957.45
  5. Step 5: Solve for x
    x = 16,714,435,957.45/144,626.88
  6. Step 6: Final answer
    x = 115,569.36

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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.