Home / 189,988.69-262,158.50-113,491.55

Finding the Fourth Proportional to 189,988.69, 262,158.50 and 113,491.55

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Solution

The fourth proportional to 189,988.69, 262,158.50 and 113,491.55 is: 156,602.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,988.69 : 262,158.50 = 113,491.55 : x
  2. Step 2: Convert to fraction form
    189,988.69/262,158.50 = 113,491.55/x
  3. Step 3: Cross multiply
    189,988.69x = 262,158.50 × 113,491.55
  4. Step 4: Simplify right side
    189,988.69x = 29,752,773,110.15
  5. Step 5: Solve for x
    x = 29,752,773,110.15/189,988.69
  6. Step 6: Final answer
    x = 156,602.87

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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.