Home / 196,154.53-270,623.63-128,210.74

Finding the Fourth Proportional to 196,154.53, 270,623.63 and 128,210.74

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Solution

The fourth proportional to 196,154.53, 270,623.63 and 128,210.74 is: 176,885.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,154.53 : 270,623.63 = 128,210.74 : x
  2. Step 2: Convert to fraction form
    196,154.53/270,623.63 = 128,210.74/x
  3. Step 3: Cross multiply
    196,154.53x = 270,623.63 × 128,210.74
  4. Step 4: Simplify right side
    196,154.53x = 34,696,855,507.75
  5. Step 5: Solve for x
    x = 34,696,855,507.75/196,154.53
  6. Step 6: Final answer
    x = 176,885.32

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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.