Home / 139,732.20-209,598.30-112,084.20

Finding the Fourth Proportional to 139,732.20, 209,598.30 and 112,084.20

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Solution

The fourth proportional to 139,732.20, 209,598.30 and 112,084.20 is: 168,126.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,732.20 : 209,598.30 = 112,084.20 : x
  2. Step 2: Convert to fraction form
    139,732.20/209,598.30 = 112,084.20/x
  3. Step 3: Cross multiply
    139,732.20x = 209,598.30 × 112,084.20
  4. Step 4: Simplify right side
    139,732.20x = 23,492,657,776.86
  5. Step 5: Solve for x
    x = 23,492,657,776.86/139,732.20
  6. Step 6: Final answer
    x = 168,126.30

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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.