Home / 139,899.45-193,060.93-76,237.09

Finding the Fourth Proportional to 139,899.45, 193,060.93 and 76,237.09

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Solution

The fourth proportional to 139,899.45, 193,060.93 and 76,237.09 is: 105,207.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,899.45 : 193,060.93 = 76,237.09 : x
  2. Step 2: Convert to fraction form
    139,899.45/193,060.93 = 76,237.09/x
  3. Step 3: Cross multiply
    139,899.45x = 193,060.93 × 76,237.09
  4. Step 4: Simplify right side
    139,899.45x = 14,718,403,495.89
  5. Step 5: Solve for x
    x = 14,718,403,495.89/139,899.45
  6. Step 6: Final answer
    x = 105,207.01

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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.