Home / 122,632.03-169,278.45-71,661.34

Finding the Fourth Proportional to 122,632.03, 169,278.45 and 71,661.34

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Solution

The fourth proportional to 122,632.03, 169,278.45 and 71,661.34 is: 98,919.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,632.03 : 169,278.45 = 71,661.34 : x
  2. Step 2: Convert to fraction form
    122,632.03/169,278.45 = 71,661.34/x
  3. Step 3: Cross multiply
    122,632.03x = 169,278.45 × 71,661.34
  4. Step 4: Simplify right side
    122,632.03x = 12,130,719,868.20
  5. Step 5: Solve for x
    x = 12,130,719,868.20/122,632.03
  6. Step 6: Final answer
    x = 98,919.67

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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.