Home / 126,970.04-190,495.30-76,424.42

Finding the Fourth Proportional to 126,970.04, 190,495.30 and 76,424.42

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Solution

The fourth proportional to 126,970.04, 190,495.30 and 76,424.42 is: 114,660.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,970.04 : 190,495.30 = 76,424.42 : x
  2. Step 2: Convert to fraction form
    126,970.04/190,495.30 = 76,424.42/x
  3. Step 3: Cross multiply
    126,970.04x = 190,495.30 × 76,424.42
  4. Step 4: Simplify right side
    126,970.04x = 14,558,492,815.23
  5. Step 5: Solve for x
    x = 14,558,492,815.23/126,970.04
  6. Step 6: Final answer
    x = 114,660.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.