Home / 122,218.02-183,607.71-86,277.12

Finding the Fourth Proportional to 122,218.02, 183,607.71 and 86,277.12

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Solution

The fourth proportional to 122,218.02, 183,607.71 and 86,277.12 is: 129,613.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,218.02 : 183,607.71 = 86,277.12 : x
  2. Step 2: Convert to fraction form
    122,218.02/183,607.71 = 86,277.12/x
  3. Step 3: Cross multiply
    122,218.02x = 183,607.71 × 86,277.12
  4. Step 4: Simplify right side
    122,218.02x = 15,841,144,428.60
  5. Step 5: Solve for x
    x = 15,841,144,428.60/122,218.02
  6. Step 6: Final answer
    x = 129,613.82

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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.