Home / 189,151.16-261,030.60-112,671.36

Finding the Fourth Proportional to 189,151.16, 261,030.60 and 112,671.36

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Solution

The fourth proportional to 189,151.16, 261,030.60 and 112,671.36 is: 155,487.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,151.16 : 261,030.60 = 112,671.36 : x
  2. Step 2: Convert to fraction form
    189,151.16/261,030.60 = 112,671.36/x
  3. Step 3: Cross multiply
    189,151.16x = 261,030.60 × 112,671.36
  4. Step 4: Simplify right side
    189,151.16x = 29,410,672,703.62
  5. Step 5: Solve for x
    x = 29,410,672,703.62/189,151.16
  6. Step 6: Final answer
    x = 155,487.67

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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.