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Finding the Fourth Proportional to 152,879.32, 210,980.48 and 84,896.56

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Solution

The fourth proportional to 152,879.32, 210,980.48 and 84,896.56 is: 117,161.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,879.32 : 210,980.48 = 84,896.56 : x
  2. Step 2: Convert to fraction form
    152,879.32/210,980.48 = 84,896.56/x
  3. Step 3: Cross multiply
    152,879.32x = 210,980.48 × 84,896.56
  4. Step 4: Simplify right side
    152,879.32x = 17,911,516,979.15
  5. Step 5: Solve for x
    x = 17,911,516,979.15/152,879.32
  6. Step 6: Final answer
    x = 117,161.15

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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.