Home / 185,071.60-255,398.90-100,188.67

Finding the Fourth Proportional to 185,071.60, 255,398.90 and 100,188.67

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Solution

The fourth proportional to 185,071.60, 255,398.90 and 100,188.67 is: 138,260.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,071.60 : 255,398.90 = 100,188.67 : x
  2. Step 2: Convert to fraction form
    185,071.60/255,398.90 = 100,188.67/x
  3. Step 3: Cross multiply
    185,071.60x = 255,398.90 × 100,188.67
  4. Step 4: Simplify right side
    185,071.60x = 25,588,076,110.46
  5. Step 5: Solve for x
    x = 25,588,076,110.46/185,071.60
  6. Step 6: Final answer
    x = 138,260.41

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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.