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Finding the Fourth Proportional to 139,532.30, 209,298.45 and 44,762.30

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Solution

The fourth proportional to 139,532.30, 209,298.45 and 44,762.30 is: 67,143.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,532.30 : 209,298.45 = 44,762.30 : x
  2. Step 2: Convert to fraction form
    139,532.30/209,298.45 = 44,762.30/x
  3. Step 3: Cross multiply
    139,532.30x = 209,298.45 × 44,762.30
  4. Step 4: Simplify right side
    139,532.30x = 9,368,680,008.44
  5. Step 5: Solve for x
    x = 9,368,680,008.44/139,532.30
  6. Step 6: Final answer
    x = 67,143.45

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1.5x scale

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.