Home / 157,806.02-217,771.20-86,186.06

Finding the Fourth Proportional to 157,806.02, 217,771.20 and 86,186.06

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Solution

The fourth proportional to 157,806.02, 217,771.20 and 86,186.06 is: 118,936.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,806.02 : 217,771.20 = 86,186.06 : x
  2. Step 2: Convert to fraction form
    157,806.02/217,771.20 = 86,186.06/x
  3. Step 3: Cross multiply
    157,806.02x = 217,771.20 × 86,186.06
  4. Step 4: Simplify right side
    157,806.02x = 18,768,841,709.47
  5. Step 5: Solve for x
    x = 18,768,841,709.47/157,806.02
  6. Step 6: Final answer
    x = 118,936.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.