Home / 112,124.37-154,729.65-61,137.50

Finding the Fourth Proportional to 112,124.37, 154,729.65 and 61,137.50

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Solution

The fourth proportional to 112,124.37, 154,729.65 and 61,137.50 is: 84,368.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,124.37 : 154,729.65 = 61,137.50 : x
  2. Step 2: Convert to fraction form
    112,124.37/154,729.65 = 61,137.50/x
  3. Step 3: Cross multiply
    112,124.37x = 154,729.65 × 61,137.50
  4. Step 4: Simplify right side
    112,124.37x = 9,459,783,976.88
  5. Step 5: Solve for x
    x = 9,459,783,976.88/112,124.37
  6. Step 6: Final answer
    x = 84,368.67

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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.