Home / 102,418.19-141,345.50-56,486.82

Finding the Fourth Proportional to 102,418.19, 141,345.50 and 56,486.82

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Solution

The fourth proportional to 102,418.19, 141,345.50 and 56,486.82 is: 77,956.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,418.19 : 141,345.50 = 56,486.82 : x
  2. Step 2: Convert to fraction form
    102,418.19/141,345.50 = 56,486.82/x
  3. Step 3: Cross multiply
    102,418.19x = 141,345.50 × 56,486.82
  4. Step 4: Simplify right side
    102,418.19x = 7,984,157,816.31
  5. Step 5: Solve for x
    x = 7,984,157,816.31/102,418.19
  6. Step 6: Final answer
    x = 77,956.44

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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.