Home / 148,075.78-222,109.98-69,278.17

Finding the Fourth Proportional to 148,075.78, 222,109.98 and 69,278.17

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Solution

The fourth proportional to 148,075.78, 222,109.98 and 69,278.17 is: 103,915.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,075.78 : 222,109.98 = 69,278.17 : x
  2. Step 2: Convert to fraction form
    148,075.78/222,109.98 = 69,278.17/x
  3. Step 3: Cross multiply
    148,075.78x = 222,109.98 × 69,278.17
  4. Step 4: Simplify right side
    148,075.78x = 15,387,372,953.14
  5. Step 5: Solve for x
    x = 15,387,372,953.14/148,075.78
  6. Step 6: Final answer
    x = 103,915.53

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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.