Home / 102,078.40-140,883.52-73,492.68

Finding the Fourth Proportional to 102,078.40, 140,883.52 and 73,492.68

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Solution

The fourth proportional to 102,078.40, 140,883.52 and 73,492.68 is: 101,430.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,078.40 : 140,883.52 = 73,492.68 : x
  2. Step 2: Convert to fraction form
    102,078.40/140,883.52 = 73,492.68/x
  3. Step 3: Cross multiply
    102,078.40x = 140,883.52 × 73,492.68
  4. Step 4: Simplify right side
    102,078.40x = 10,353,907,452.63
  5. Step 5: Solve for x
    x = 10,353,907,452.63/102,078.40
  6. Step 6: Final answer
    x = 101,430.93

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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.