Home / 137,835.14-190,222.60-77,409.35

Finding the Fourth Proportional to 137,835.14, 190,222.60 and 77,409.35

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Solution

The fourth proportional to 137,835.14, 190,222.60 and 77,409.35 is: 106,830.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,835.14 : 190,222.60 = 77,409.35 : x
  2. Step 2: Convert to fraction form
    137,835.14/190,222.60 = 77,409.35/x
  3. Step 3: Cross multiply
    137,835.14x = 190,222.60 × 77,409.35
  4. Step 4: Simplify right side
    137,835.14x = 14,725,007,217.86
  5. Step 5: Solve for x
    x = 14,725,007,217.86/137,835.14
  6. Step 6: Final answer
    x = 106,830.57

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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.