Home / 154,736.15-213,533.28-86,755.68

Finding the Fourth Proportional to 154,736.15, 213,533.28 and 86,755.68

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Solution

The fourth proportional to 154,736.15, 213,533.28 and 86,755.68 is: 119,721.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,736.15 : 213,533.28 = 86,755.68 : x
  2. Step 2: Convert to fraction form
    154,736.15/213,533.28 = 86,755.68/x
  3. Step 3: Cross multiply
    154,736.15x = 213,533.28 × 86,755.68
  4. Step 4: Simplify right side
    154,736.15x = 18,525,224,909.03
  5. Step 5: Solve for x
    x = 18,525,224,909.03/154,736.15
  6. Step 6: Final answer
    x = 119,721.38

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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.