Home / 261,178.02-391,242.12-136,256.58

Finding the Fourth Proportional to 261,178.02, 391,242.12 and 136,256.58

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Solution

The fourth proportional to 261,178.02, 391,242.12 and 136,256.58 is: 204,111.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,178.02 : 391,242.12 = 136,256.58 : x
  2. Step 2: Convert to fraction form
    261,178.02/391,242.12 = 136,256.58/x
  3. Step 3: Cross multiply
    261,178.02x = 391,242.12 × 136,256.58
  4. Step 4: Simplify right side
    261,178.02x = 53,309,313,223.15
  5. Step 5: Solve for x
    x = 53,309,313,223.15/261,178.02
  6. Step 6: Final answer
    x = 204,111.02

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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.