Home / 148,085.40-222,128.10-42,907.80

Finding the Fourth Proportional to 148,085.40, 222,128.10 and 42,907.80

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Solution

The fourth proportional to 148,085.40, 222,128.10 and 42,907.80 is: 64,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,085.40 : 222,128.10 = 42,907.80 : x
  2. Step 2: Convert to fraction form
    148,085.40/222,128.10 = 42,907.80/x
  3. Step 3: Cross multiply
    148,085.40x = 222,128.10 × 42,907.80
  4. Step 4: Simplify right side
    148,085.40x = 9,531,028,089.18
  5. Step 5: Solve for x
    x = 9,531,028,089.18/148,085.40
  6. Step 6: Final answer
    x = 64,361.70

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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.