Home / 139,628.20-209,442.30-56,522.20

Finding the Fourth Proportional to 139,628.20, 209,442.30 and 56,522.20

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Solution

The fourth proportional to 139,628.20, 209,442.30 and 56,522.20 is: 84,783.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,628.20 : 209,442.30 = 56,522.20 : x
  2. Step 2: Convert to fraction form
    139,628.20/209,442.30 = 56,522.20/x
  3. Step 3: Cross multiply
    139,628.20x = 209,442.30 × 56,522.20
  4. Step 4: Simplify right side
    139,628.20x = 11,838,139,569.06
  5. Step 5: Solve for x
    x = 11,838,139,569.06/139,628.20
  6. Step 6: Final answer
    x = 84,783.30

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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.