Home / 191,140.44-263,750.76-105,085.20

Finding the Fourth Proportional to 191,140.44, 263,750.76 and 105,085.20

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Solution

The fourth proportional to 191,140.44, 263,750.76 and 105,085.20 is: 145,004.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,140.44 : 263,750.76 = 105,085.20 : x
  2. Step 2: Convert to fraction form
    191,140.44/263,750.76 = 105,085.20/x
  3. Step 3: Cross multiply
    191,140.44x = 263,750.76 × 105,085.20
  4. Step 4: Simplify right side
    191,140.44x = 27,716,301,364.75
  5. Step 5: Solve for x
    x = 27,716,301,364.75/191,140.44
  6. Step 6: Final answer
    x = 145,004.91

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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.