Home / 137,768.45-190,110.14-77,348.32

Finding the Fourth Proportional to 137,768.45, 190,110.14 and 77,348.32

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Solution

The fourth proportional to 137,768.45, 190,110.14 and 77,348.32 is: 106,734.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,768.45 : 190,110.14 = 77,348.32 : x
  2. Step 2: Convert to fraction form
    137,768.45/190,110.14 = 77,348.32/x
  3. Step 3: Cross multiply
    137,768.45x = 190,110.14 × 77,348.32
  4. Step 4: Simplify right side
    137,768.45x = 14,704,699,372.00
  5. Step 5: Solve for x
    x = 14,704,699,372.00/137,768.45
  6. Step 6: Final answer
    x = 106,734.89

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1.5x scale

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.