Home / 105,420.24-145,488.60-60,099.12

Finding the Fourth Proportional to 105,420.24, 145,488.60 and 60,099.12

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Solution

The fourth proportional to 105,420.24, 145,488.60 and 60,099.12 is: 82,941.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,420.24 : 145,488.60 = 60,099.12 : x
  2. Step 2: Convert to fraction form
    105,420.24/145,488.60 = 60,099.12/x
  3. Step 3: Cross multiply
    105,420.24x = 145,488.60 × 60,099.12
  4. Step 4: Simplify right side
    105,420.24x = 8,743,736,830.03
  5. Step 5: Solve for x
    x = 8,743,736,830.03/105,420.24
  6. Step 6: Final answer
    x = 82,941.73

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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.