Home / 133,075.30-183,643.83-72,645.93

Finding the Fourth Proportional to 133,075.30, 183,643.83 and 72,645.93

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Solution

The fourth proportional to 133,075.30, 183,643.83 and 72,645.93 is: 100,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,075.30 : 183,643.83 = 72,645.93 : x
  2. Step 2: Convert to fraction form
    133,075.30/183,643.83 = 72,645.93/x
  3. Step 3: Cross multiply
    133,075.30x = 183,643.83 × 72,645.93
  4. Step 4: Simplify right side
    133,075.30x = 13,340,976,506.93
  5. Step 5: Solve for x
    x = 13,340,976,506.93/133,075.30
  6. Step 6: Final answer
    x = 100,251.34

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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.