Home / 186,235.21-257,010.42-105,666.13

Finding the Fourth Proportional to 186,235.21, 257,010.42 and 105,666.13

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Solution

The fourth proportional to 186,235.21, 257,010.42 and 105,666.13 is: 145,822.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,235.21 : 257,010.42 = 105,666.13 : x
  2. Step 2: Convert to fraction form
    186,235.21/257,010.42 = 105,666.13/x
  3. Step 3: Cross multiply
    186,235.21x = 257,010.42 × 105,666.13
  4. Step 4: Simplify right side
    186,235.21x = 27,157,296,451.07
  5. Step 5: Solve for x
    x = 27,157,296,451.07/186,235.21
  6. Step 6: Final answer
    x = 145,822.57

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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.