Home / 186,000.86-256,701.25-105,419.74

Finding the Fourth Proportional to 186,000.86, 256,701.25 and 105,419.74

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Solution

The fourth proportional to 186,000.86, 256,701.25 and 105,419.74 is: 145,490.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,000.86 : 256,701.25 = 105,419.74 : x
  2. Step 2: Convert to fraction form
    186,000.86/256,701.25 = 105,419.74/x
  3. Step 3: Cross multiply
    186,000.86x = 256,701.25 × 105,419.74
  4. Step 4: Simplify right side
    186,000.86x = 27,061,378,127.37
  5. Step 5: Solve for x
    x = 27,061,378,127.37/186,000.86
  6. Step 6: Final answer
    x = 145,490.61

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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.