Home / 118,143.95-163,048.33-67,172.67

Finding the Fourth Proportional to 118,143.95, 163,048.33 and 67,172.67

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Solution

The fourth proportional to 118,143.95, 163,048.33 and 67,172.67 is: 92,703.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,143.95 : 163,048.33 = 67,172.67 : x
  2. Step 2: Convert to fraction form
    118,143.95/163,048.33 = 67,172.67/x
  3. Step 3: Cross multiply
    118,143.95x = 163,048.33 × 67,172.67
  4. Step 4: Simplify right side
    118,143.95x = 10,952,391,749.11
  5. Step 5: Solve for x
    x = 10,952,391,749.11/118,143.95
  6. Step 6: Final answer
    x = 92,703.79

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1.5x scale

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.