Home / 104,912.76-157,370.28-83,985.84

Finding the Fourth Proportional to 104,912.76, 157,370.28 and 83,985.84

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Solution

The fourth proportional to 104,912.76, 157,370.28 and 83,985.84 is: 125,979.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,912.76 : 157,370.28 = 83,985.84 : x
  2. Step 2: Convert to fraction form
    104,912.76/157,370.28 = 83,985.84/x
  3. Step 3: Cross multiply
    104,912.76x = 157,370.28 × 83,985.84
  4. Step 4: Simplify right side
    104,912.76x = 13,216,875,156.84
  5. Step 5: Solve for x
    x = 13,216,875,156.84/104,912.76
  6. Step 6: Final answer
    x = 125,979.67

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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.