Home / 187,300.35-258,475.86-105,629.67

Finding the Fourth Proportional to 187,300.35, 258,475.86 and 105,629.67

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Solution

The fourth proportional to 187,300.35, 258,475.86 and 105,629.67 is: 145,769.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,300.35 : 258,475.86 = 105,629.67 : x
  2. Step 2: Convert to fraction form
    187,300.35/258,475.86 = 105,629.67/x
  3. Step 3: Cross multiply
    187,300.35x = 258,475.86 × 105,629.67
  4. Step 4: Simplify right side
    187,300.35x = 27,302,719,794.77
  5. Step 5: Solve for x
    x = 27,302,719,794.77/187,300.35
  6. Step 6: Final answer
    x = 145,769.72

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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.