Home / 103,240.58-142,522.05-69,236.67

Finding the Fourth Proportional to 103,240.58, 142,522.05 and 69,236.67

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Solution

The fourth proportional to 103,240.58, 142,522.05 and 69,236.67 is: 95,580.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,240.58 : 142,522.05 = 69,236.67 : x
  2. Step 2: Convert to fraction form
    103,240.58/142,522.05 = 69,236.67/x
  3. Step 3: Cross multiply
    103,240.58x = 142,522.05 × 69,236.67
  4. Step 4: Simplify right side
    103,240.58x = 9,867,752,143.57
  5. Step 5: Solve for x
    x = 9,867,752,143.57/103,240.58
  6. Step 6: Final answer
    x = 95,580.17

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1.5x scale

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.