Home / 137,879.42-190,267.18-76,622.76

Finding the Fourth Proportional to 137,879.42, 190,267.18 and 76,622.76

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Solution

The fourth proportional to 137,879.42, 190,267.18 and 76,622.76 is: 105,735.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,879.42 : 190,267.18 = 76,622.76 : x
  2. Step 2: Convert to fraction form
    137,879.42/190,267.18 = 76,622.76/x
  3. Step 3: Cross multiply
    137,879.42x = 190,267.18 × 76,622.76
  4. Step 4: Simplify right side
    137,879.42x = 14,578,796,277.46
  5. Step 5: Solve for x
    x = 14,578,796,277.46/137,879.42
  6. Step 6: Final answer
    x = 105,735.84

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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.