Home / 102,213.63-141,056.14-56,278.61

Finding the Fourth Proportional to 102,213.63, 141,056.14 and 56,278.61

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Solution

The fourth proportional to 102,213.63, 141,056.14 and 56,278.61 is: 77,665.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,213.63 : 141,056.14 = 56,278.61 : x
  2. Step 2: Convert to fraction form
    102,213.63/141,056.14 = 56,278.61/x
  3. Step 3: Cross multiply
    102,213.63x = 141,056.14 × 56,278.61
  4. Step 4: Simplify right side
    102,213.63x = 7,938,443,332.66
  5. Step 5: Solve for x
    x = 7,938,443,332.66/102,213.63
  6. Step 6: Final answer
    x = 77,665.22

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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.