Home / 148,145.80-222,343.14-138,804.07

Finding the Fourth Proportional to 148,145.80, 222,343.14 and 138,804.07

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Solution

The fourth proportional to 148,145.80, 222,343.14 and 138,804.07 is: 208,322.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,145.80 : 222,343.14 = 138,804.07 : x
  2. Step 2: Convert to fraction form
    148,145.80/222,343.14 = 138,804.07/x
  3. Step 3: Cross multiply
    148,145.80x = 222,343.14 × 138,804.07
  4. Step 4: Simplify right side
    148,145.80x = 30,862,132,768.58
  5. Step 5: Solve for x
    x = 30,862,132,768.58/148,145.80
  6. Step 6: Final answer
    x = 208,322.70

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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.