Home / 151,783.12-209,455.23-83,798.61

Finding the Fourth Proportional to 151,783.12, 209,455.23 and 83,798.61

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Solution

The fourth proportional to 151,783.12, 209,455.23 and 83,798.61 is: 115,639.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,783.12 : 209,455.23 = 83,798.61 : x
  2. Step 2: Convert to fraction form
    151,783.12/209,455.23 = 83,798.61/x
  3. Step 3: Cross multiply
    151,783.12x = 209,455.23 × 83,798.61
  4. Step 4: Simplify right side
    151,783.12x = 17,552,057,131.23
  5. Step 5: Solve for x
    x = 17,552,057,131.23/151,783.12
  6. Step 6: Final answer
    x = 115,639.06

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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.