Home / 153,922.40-230,883.58-78,009.11

Finding the Fourth Proportional to 153,922.40, 230,883.58 and 78,009.11

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Solution

The fourth proportional to 153,922.40, 230,883.58 and 78,009.11 is: 117,013.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,922.40 : 230,883.58 = 78,009.11 : x
  2. Step 2: Convert to fraction form
    153,922.40/230,883.58 = 78,009.11/x
  3. Step 3: Cross multiply
    153,922.40x = 230,883.58 × 78,009.11
  4. Step 4: Simplify right side
    153,922.40x = 18,011,023,361.65
  5. Step 5: Solve for x
    x = 18,011,023,361.65/153,922.40
  6. Step 6: Final answer
    x = 117,013.66

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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.