Home / 122,075.82-183,172.05-77,752.62

Finding the Fourth Proportional to 122,075.82, 183,172.05 and 77,752.62

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Solution

The fourth proportional to 122,075.82, 183,172.05 and 77,752.62 is: 116,666.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,075.82 : 183,172.05 = 77,752.62 : x
  2. Step 2: Convert to fraction form
    122,075.82/183,172.05 = 77,752.62/x
  3. Step 3: Cross multiply
    122,075.82x = 183,172.05 × 77,752.62
  4. Step 4: Simplify right side
    122,075.82x = 14,242,106,798.27
  5. Step 5: Solve for x
    x = 14,242,106,798.27/122,075.82
  6. Step 6: Final answer
    x = 116,666.08

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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.