Home / 196,155.53-270,625.01-128,211.74

Finding the Fourth Proportional to 196,155.53, 270,625.01 and 128,211.74

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Solution

The fourth proportional to 196,155.53, 270,625.01 and 128,211.74 is: 176,886.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,155.53 : 270,625.01 = 128,211.74 : x
  2. Step 2: Convert to fraction form
    196,155.53/270,625.01 = 128,211.74/x
  3. Step 3: Cross multiply
    196,155.53x = 270,625.01 × 128,211.74
  4. Step 4: Simplify right side
    196,155.53x = 34,697,303,419.62
  5. Step 5: Solve for x
    x = 34,697,303,419.62/196,155.53
  6. Step 6: Final answer
    x = 176,886.70

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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.