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Finding the Fourth Proportional to 152,783.38, 210,879.82 and 104,404.90

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Solution

The fourth proportional to 152,783.38, 210,879.82 and 104,404.90 is: 144,105.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,783.38 : 210,879.82 = 104,404.90 : x
  2. Step 2: Convert to fraction form
    152,783.38/210,879.82 = 104,404.90/x
  3. Step 3: Cross multiply
    152,783.38x = 210,879.82 × 104,404.90
  4. Step 4: Simplify right side
    152,783.38x = 22,016,886,519.12
  5. Step 5: Solve for x
    x = 22,016,886,519.12/152,783.38
  6. Step 6: Final answer
    x = 144,105.25

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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.