Home / 122,590.64-169,204.32-74,884.16

Finding the Fourth Proportional to 122,590.64, 169,204.32 and 74,884.16

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Solution

The fourth proportional to 122,590.64, 169,204.32 and 74,884.16 is: 103,358.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,590.64 : 169,204.32 = 74,884.16 : x
  2. Step 2: Convert to fraction form
    122,590.64/169,204.32 = 74,884.16/x
  3. Step 3: Cross multiply
    122,590.64x = 169,204.32 × 74,884.16
  4. Step 4: Simplify right side
    122,590.64x = 12,670,723,371.57
  5. Step 5: Solve for x
    x = 12,670,723,371.57/122,590.64
  6. Step 6: Final answer
    x = 103,358.00

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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.