Home / 127,867.36-176,456.97-71,278.74

Finding the Fourth Proportional to 127,867.36, 176,456.97 and 71,278.74

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Solution

The fourth proportional to 127,867.36, 176,456.97 and 71,278.74 is: 98,364.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,867.36 : 176,456.97 = 71,278.74 : x
  2. Step 2: Convert to fraction form
    127,867.36/176,456.97 = 71,278.74/x
  3. Step 3: Cross multiply
    127,867.36x = 176,456.97 × 71,278.74
  4. Step 4: Simplify right side
    127,867.36x = 12,577,630,485.82
  5. Step 5: Solve for x
    x = 12,577,630,485.82/127,867.36
  6. Step 6: Final answer
    x = 98,364.67

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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.