Home / 196,211.34-293,803.18-128,530.49

Finding the Fourth Proportional to 196,211.34, 293,803.18 and 128,530.49

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Solution

The fourth proportional to 196,211.34, 293,803.18 and 128,530.49 is: 192,459.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,211.34 : 293,803.18 = 128,530.49 : x
  2. Step 2: Convert to fraction form
    196,211.34/293,803.18 = 128,530.49/x
  3. Step 3: Cross multiply
    196,211.34x = 293,803.18 × 128,530.49
  4. Step 4: Simplify right side
    196,211.34x = 37,762,664,898.62
  5. Step 5: Solve for x
    x = 37,762,664,898.62/196,211.34
  6. Step 6: Final answer
    x = 192,459.14

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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.