Home / 118,047.06-162,780.30-87,783.84

Finding the Fourth Proportional to 118,047.06, 162,780.30 and 87,783.84

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Solution

The fourth proportional to 118,047.06, 162,780.30 and 87,783.84 is: 121,049.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,047.06 : 162,780.30 = 87,783.84 : x
  2. Step 2: Convert to fraction form
    118,047.06/162,780.30 = 87,783.84/x
  3. Step 3: Cross multiply
    118,047.06x = 162,780.30 × 87,783.84
  4. Step 4: Simplify right side
    118,047.06x = 14,289,479,810.35
  5. Step 5: Solve for x
    x = 14,289,479,810.35/118,047.06
  6. Step 6: Final answer
    x = 121,049.01

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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.