Home / 186,235.46-257,010.77-105,666.38

Finding the Fourth Proportional to 186,235.46, 257,010.77 and 105,666.38

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Solution

The fourth proportional to 186,235.46, 257,010.77 and 105,666.38 is: 145,822.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,235.46 : 257,010.77 = 105,666.38 : x
  2. Step 2: Convert to fraction form
    186,235.46/257,010.77 = 105,666.38/x
  3. Step 3: Cross multiply
    186,235.46x = 257,010.77 × 105,666.38
  4. Step 4: Simplify right side
    186,235.46x = 27,157,397,686.91
  5. Step 5: Solve for x
    x = 27,157,397,686.91/186,235.46
  6. Step 6: Final answer
    x = 145,822.92

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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.