Home / 152,755.52-210,832.80-89,103.36

Finding the Fourth Proportional to 152,755.52, 210,832.80 and 89,103.36

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Solution

The fourth proportional to 152,755.52, 210,832.80 and 89,103.36 is: 122,980.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,755.52 : 210,832.80 = 89,103.36 : x
  2. Step 2: Convert to fraction form
    152,755.52/210,832.80 = 89,103.36/x
  3. Step 3: Cross multiply
    152,755.52x = 210,832.80 × 89,103.36
  4. Step 4: Simplify right side
    152,755.52x = 18,785,910,878.21
  5. Step 5: Solve for x
    x = 18,785,910,878.21/152,755.52
  6. Step 6: Final answer
    x = 122,980.24

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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.