Home / 133,075.90-183,636.98-72,634.50

Finding the Fourth Proportional to 133,075.90, 183,636.98 and 72,634.50

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Solution

The fourth proportional to 133,075.90, 183,636.98 and 72,634.50 is: 100,231.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,075.90 : 183,636.98 = 72,634.50 : x
  2. Step 2: Convert to fraction form
    133,075.90/183,636.98 = 72,634.50/x
  3. Step 3: Cross multiply
    133,075.90x = 183,636.98 × 72,634.50
  4. Step 4: Simplify right side
    133,075.90x = 13,338,380,223.81
  5. Step 5: Solve for x
    x = 13,338,380,223.81/133,075.90
  6. Step 6: Final answer
    x = 100,231.37

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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.