Home / 102,400.75-141,306.14-64,159.23

Finding the Fourth Proportional to 102,400.75, 141,306.14 and 64,159.23

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Solution

The fourth proportional to 102,400.75, 141,306.14 and 64,159.23 is: 88,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,400.75 : 141,306.14 = 64,159.23 : x
  2. Step 2: Convert to fraction form
    102,400.75/141,306.14 = 64,159.23/x
  3. Step 3: Cross multiply
    102,400.75x = 141,306.14 × 64,159.23
  4. Step 4: Simplify right side
    102,400.75x = 9,066,093,297.07
  5. Step 5: Solve for x
    x = 9,066,093,297.07/102,400.75
  6. Step 6: Final answer
    x = 88,535.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.