Home / 121,118.76-181,679.22-42,232.86

Finding the Fourth Proportional to 121,118.76, 181,679.22 and 42,232.86

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Solution

The fourth proportional to 121,118.76, 181,679.22 and 42,232.86 is: 63,349.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,118.76 : 181,679.22 = 42,232.86 : x
  2. Step 2: Convert to fraction form
    121,118.76/181,679.22 = 42,232.86/x
  3. Step 3: Cross multiply
    121,118.76x = 181,679.22 × 42,232.86
  4. Step 4: Simplify right side
    121,118.76x = 7,672,833,063.17
  5. Step 5: Solve for x
    x = 7,672,833,063.17/121,118.76
  6. Step 6: Final answer
    x = 63,349.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.