Home / 105,131.17-157,743.06-55,199.67

Finding the Fourth Proportional to 105,131.17, 157,743.06 and 55,199.67

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Solution

The fourth proportional to 105,131.17, 157,743.06 and 55,199.67 is: 82,823.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,131.17 : 157,743.06 = 55,199.67 : x
  2. Step 2: Convert to fraction form
    105,131.17/157,743.06 = 55,199.67/x
  3. Step 3: Cross multiply
    105,131.17x = 157,743.06 × 55,199.67
  4. Step 4: Simplify right side
    105,131.17x = 8,707,364,068.07
  5. Step 5: Solve for x
    x = 8,707,364,068.07/105,131.17
  6. Step 6: Final answer
    x = 82,823.81

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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.