Home / 153,313.15-230,016.73-78,486.31

Finding the Fourth Proportional to 153,313.15, 230,016.73 and 78,486.31

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Solution

The fourth proportional to 153,313.15, 230,016.73 and 78,486.31 is: 117,753.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,313.15 : 230,016.73 = 78,486.31 : x
  2. Step 2: Convert to fraction form
    153,313.15/230,016.73 = 78,486.31/x
  3. Step 3: Cross multiply
    153,313.15x = 230,016.73 × 78,486.31
  4. Step 4: Simplify right side
    153,313.15x = 18,053,163,604.71
  5. Step 5: Solve for x
    x = 18,053,163,604.71/153,313.15
  6. Step 6: Final answer
    x = 117,753.53

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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.