Home / 189,364.02-261,085.98-121,269.04

Finding the Fourth Proportional to 189,364.02, 261,085.98 and 121,269.04

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Solution

The fourth proportional to 189,364.02, 261,085.98 and 121,269.04 is: 167,199.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,364.02 : 261,085.98 = 121,269.04 : x
  2. Step 2: Convert to fraction form
    189,364.02/261,085.98 = 121,269.04/x
  3. Step 3: Cross multiply
    189,364.02x = 261,085.98 × 121,269.04
  4. Step 4: Simplify right side
    189,364.02x = 31,661,645,665.20
  5. Step 5: Solve for x
    x = 31,661,645,665.20/189,364.02
  6. Step 6: Final answer
    x = 167,199.90

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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.