Home / 155,621.40-233,104.05-139,000.20

Finding the Fourth Proportional to 155,621.40, 233,104.05 and 139,000.20

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Solution

The fourth proportional to 155,621.40, 233,104.05 and 139,000.20 is: 208,207.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,621.40 : 233,104.05 = 139,000.20 : x
  2. Step 2: Convert to fraction form
    155,621.40/233,104.05 = 139,000.20/x
  3. Step 3: Cross multiply
    155,621.40x = 233,104.05 × 139,000.20
  4. Step 4: Simplify right side
    155,621.40x = 32,401,509,570.81
  5. Step 5: Solve for x
    x = 32,401,509,570.81/155,621.40
  6. Step 6: Final answer
    x = 208,207.29

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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.