Home / 191,262.16-263,938.10-105,216.11

Finding the Fourth Proportional to 191,262.16, 263,938.10 and 105,216.11

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Solution

The fourth proportional to 191,262.16, 263,938.10 and 105,216.11 is: 145,196.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,262.16 : 263,938.10 = 105,216.11 : x
  2. Step 2: Convert to fraction form
    191,262.16/263,938.10 = 105,216.11/x
  3. Step 3: Cross multiply
    191,262.16x = 263,938.10 × 105,216.11
  4. Step 4: Simplify right side
    191,262.16x = 27,770,539,636.71
  5. Step 5: Solve for x
    x = 27,770,539,636.71/191,262.16
  6. Step 6: Final answer
    x = 145,196.21

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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.