Home / 102,047.94-140,823.36-56,724.84

Finding the Fourth Proportional to 102,047.94, 140,823.36 and 56,724.84

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Solution

The fourth proportional to 102,047.94, 140,823.36 and 56,724.84 is: 78,278.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,047.94 : 140,823.36 = 56,724.84 : x
  2. Step 2: Convert to fraction form
    102,047.94/140,823.36 = 56,724.84/x
  3. Step 3: Cross multiply
    102,047.94x = 140,823.36 × 56,724.84
  4. Step 4: Simplify right side
    102,047.94x = 7,988,182,564.26
  5. Step 5: Solve for x
    x = 7,988,182,564.26/102,047.94
  6. Step 6: Final answer
    x = 78,278.72

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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.