Home / 223,075.15-307,843.95-121,100.56

Finding the Fourth Proportional to 223,075.15, 307,843.95 and 121,100.56

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Solution

The fourth proportional to 223,075.15, 307,843.95 and 121,100.56 is: 167,118.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,075.15 : 307,843.95 = 121,100.56 : x
  2. Step 2: Convert to fraction form
    223,075.15/307,843.95 = 121,100.56/x
  3. Step 3: Cross multiply
    223,075.15x = 307,843.95 × 121,100.56
  4. Step 4: Simplify right side
    223,075.15x = 37,280,074,737.61
  5. Step 5: Solve for x
    x = 37,280,074,737.61/223,075.15
  6. Step 6: Final answer
    x = 167,118.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.