Home / 152,783.38-229,181.21-72,780.22

Finding the Fourth Proportional to 152,783.38, 229,181.21 and 72,780.22

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Solution

The fourth proportional to 152,783.38, 229,181.21 and 72,780.22 is: 109,173.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,783.38 : 229,181.21 = 72,780.22 : x
  2. Step 2: Convert to fraction form
    152,783.38/229,181.21 = 72,780.22/x
  3. Step 3: Cross multiply
    152,783.38x = 229,181.21 × 72,780.22
  4. Step 4: Simplify right side
    152,783.38x = 16,679,857,373.86
  5. Step 5: Solve for x
    x = 16,679,857,373.86/152,783.38
  6. Step 6: Final answer
    x = 109,173.25

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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.