Home / 122,633.13-169,204.16-71,616.90

Finding the Fourth Proportional to 122,633.13, 169,204.16 and 71,616.90

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Solution

The fourth proportional to 122,633.13, 169,204.16 and 71,616.90 is: 98,814.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,633.13 : 169,204.16 = 71,616.90 : x
  2. Step 2: Convert to fraction form
    122,633.13/169,204.16 = 71,616.90/x
  3. Step 3: Cross multiply
    122,633.13x = 169,204.16 × 71,616.90
  4. Step 4: Simplify right side
    122,633.13x = 12,117,877,048.22
  5. Step 5: Solve for x
    x = 12,117,877,048.22/122,633.13
  6. Step 6: Final answer
    x = 98,814.06

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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.