Home / 186,018.18-256,713.87-105,447.27

Finding the Fourth Proportional to 186,018.18, 256,713.87 and 105,447.27

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Solution

The fourth proportional to 186,018.18, 256,713.87 and 105,447.27 is: 145,522.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,018.18 : 256,713.87 = 105,447.27 : x
  2. Step 2: Convert to fraction form
    186,018.18/256,713.87 = 105,447.27/x
  3. Step 3: Cross multiply
    186,018.18x = 256,713.87 × 105,447.27
  4. Step 4: Simplify right side
    186,018.18x = 27,069,776,235.40
  5. Step 5: Solve for x
    x = 27,069,776,235.40/186,018.18
  6. Step 6: Final answer
    x = 145,522.21

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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.