Home / 102,400.22-141,312.96-57,081.08

Finding the Fourth Proportional to 102,400.22, 141,312.96 and 57,081.08

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Solution

The fourth proportional to 102,400.22, 141,312.96 and 57,081.08 is: 78,772.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,400.22 : 141,312.96 = 57,081.08 : x
  2. Step 2: Convert to fraction form
    102,400.22/141,312.96 = 57,081.08/x
  3. Step 3: Cross multiply
    102,400.22x = 141,312.96 × 57,081.08
  4. Step 4: Simplify right side
    102,400.22x = 8,066,296,374.80
  5. Step 5: Solve for x
    x = 8,066,296,374.80/102,400.22
  6. Step 6: Final answer
    x = 78,772.26

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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.