Home / 105,749.35-145,966.77-68,023.60

Finding the Fourth Proportional to 105,749.35, 145,966.77 and 68,023.60

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Solution

The fourth proportional to 105,749.35, 145,966.77 and 68,023.60 is: 93,893.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,749.35 : 145,966.77 = 68,023.60 : x
  2. Step 2: Convert to fraction form
    105,749.35/145,966.77 = 68,023.60/x
  3. Step 3: Cross multiply
    105,749.35x = 145,966.77 × 68,023.60
  4. Step 4: Simplify right side
    105,749.35x = 9,929,184,980.91
  5. Step 5: Solve for x
    x = 9,929,184,980.91/105,749.35
  6. Step 6: Final answer
    x = 93,893.58

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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.