Home / 130,050.96-178,780.89-111,834.87

Finding the Fourth Proportional to 130,050.96, 178,780.89 and 111,834.87

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Solution

The fourth proportional to 130,050.96, 178,780.89 and 111,834.87 is: 153,739.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,050.96 : 178,780.89 = 111,834.87 : x
  2. Step 2: Convert to fraction form
    130,050.96/178,780.89 = 111,834.87/x
  3. Step 3: Cross multiply
    130,050.96x = 178,780.89 × 111,834.87
  4. Step 4: Simplify right side
    130,050.96x = 19,993,937,591.63
  5. Step 5: Solve for x
    x = 19,993,937,591.63/130,050.96
  6. Step 6: Final answer
    x = 153,739.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.