Home / 155,621.63-233,247.90-139,752.20

Finding the Fourth Proportional to 155,621.63, 233,247.90 and 139,752.20

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Solution

The fourth proportional to 155,621.63, 233,247.90 and 139,752.20 is: 209,462.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,621.63 : 233,247.90 = 139,752.20 : x
  2. Step 2: Convert to fraction form
    155,621.63/233,247.90 = 139,752.20/x
  3. Step 3: Cross multiply
    155,621.63x = 233,247.90 × 139,752.20
  4. Step 4: Simplify right side
    155,621.63x = 32,596,907,170.38
  5. Step 5: Solve for x
    x = 32,596,907,170.38/155,621.63
  6. Step 6: Final answer
    x = 209,462.57

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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.