Home / 112,852.13-155,734.80-61,867.67

Finding the Fourth Proportional to 112,852.13, 155,734.80 and 61,867.67

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Solution

The fourth proportional to 112,852.13, 155,734.80 and 61,867.67 is: 85,376.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,852.13 : 155,734.80 = 61,867.67 : x
  2. Step 2: Convert to fraction form
    112,852.13/155,734.80 = 61,867.67/x
  3. Step 3: Cross multiply
    112,852.13x = 155,734.80 × 61,867.67
  4. Step 4: Simplify right side
    112,852.13x = 9,634,949,213.92
  5. Step 5: Solve for x
    x = 9,634,949,213.92/112,852.13
  6. Step 6: Final answer
    x = 85,376.76

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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.