Home / 112,659.21-155,465.03-61,670.67

Finding the Fourth Proportional to 112,659.21, 155,465.03 and 61,670.67

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Solution

The fourth proportional to 112,659.21, 155,465.03 and 61,670.67 is: 85,102.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,659.21 : 155,465.03 = 61,670.67 : x
  2. Step 2: Convert to fraction form
    112,659.21/155,465.03 = 61,670.67/x
  3. Step 3: Cross multiply
    112,659.21x = 155,465.03 × 61,670.67
  4. Step 4: Simplify right side
    112,659.21x = 9,587,632,253.32
  5. Step 5: Solve for x
    x = 9,587,632,253.32/112,659.21
  6. Step 6: Final answer
    x = 85,102.96

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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.