Home / 139,970.98-193,166.01-76,312.42

Finding the Fourth Proportional to 139,970.98, 193,166.01 and 76,312.42

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Solution

The fourth proportional to 139,970.98, 193,166.01 and 76,312.42 is: 105,314.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,970.98 : 193,166.01 = 76,312.42 : x
  2. Step 2: Convert to fraction form
    139,970.98/193,166.01 = 76,312.42/x
  3. Step 3: Cross multiply
    139,970.98x = 193,166.01 × 76,312.42
  4. Step 4: Simplify right side
    139,970.98x = 14,740,965,684.84
  5. Step 5: Solve for x
    x = 14,740,965,684.84/139,970.98
  6. Step 6: Final answer
    x = 105,314.44

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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.