Home / 153,019.86-211,180.68-89,378.16

Finding the Fourth Proportional to 153,019.86, 211,180.68 and 89,378.16

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Solution

The fourth proportional to 153,019.86, 211,180.68 and 89,378.16 is: 123,349.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,019.86 : 211,180.68 = 89,378.16 : x
  2. Step 2: Convert to fraction form
    153,019.86/211,180.68 = 89,378.16/x
  3. Step 3: Cross multiply
    153,019.86x = 211,180.68 × 89,378.16
  4. Step 4: Simplify right side
    153,019.86x = 18,874,940,605.95
  5. Step 5: Solve for x
    x = 18,874,940,605.95/153,019.86
  6. Step 6: Final answer
    x = 123,349.61

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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.