Home / 140,329.72-193,657.80-76,671.46

Finding the Fourth Proportional to 140,329.72, 193,657.80 and 76,671.46

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Solution

The fourth proportional to 140,329.72, 193,657.80 and 76,671.46 is: 105,808.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,329.72 : 193,657.80 = 76,671.46 : x
  2. Step 2: Convert to fraction form
    140,329.72/193,657.80 = 76,671.46/x
  3. Step 3: Cross multiply
    140,329.72x = 193,657.80 × 76,671.46
  4. Step 4: Simplify right side
    140,329.72x = 14,848,026,266.39
  5. Step 5: Solve for x
    x = 14,848,026,266.39/140,329.72
  6. Step 6: Final answer
    x = 105,808.14

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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.