Home / 190,570.60-263,003.58-105,715

Finding the Fourth Proportional to 190,570.60, 263,003.58 and 105,715

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Solution

The fourth proportional to 190,570.60, 263,003.58 and 105,715 is: 145,895.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,570.60 : 263,003.58 = 105,715 : x
  2. Step 2: Convert to fraction form
    190,570.60/263,003.58 = 105,715/x
  3. Step 3: Cross multiply
    190,570.60x = 263,003.58 × 105,715
  4. Step 4: Simplify right side
    190,570.60x = 27,803,423,459.70
  5. Step 5: Solve for x
    x = 27,803,423,459.70/190,570.60
  6. Step 6: Final answer
    x = 145,895.66

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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.