Home / 140,303.10-193,622.43-76,641.94

Finding the Fourth Proportional to 140,303.10, 193,622.43 and 76,641.94

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Solution

The fourth proportional to 140,303.10, 193,622.43 and 76,641.94 is: 105,768.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,303.10 : 193,622.43 = 76,641.94 : x
  2. Step 2: Convert to fraction form
    140,303.10/193,622.43 = 76,641.94/x
  3. Step 3: Cross multiply
    140,303.10x = 193,622.43 × 76,641.94
  4. Step 4: Simplify right side
    140,303.10x = 14,839,598,662.71
  5. Step 5: Solve for x
    x = 14,839,598,662.71/140,303.10
  6. Step 6: Final answer
    x = 105,768.15

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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.