Home / 186,277.18-257,055.35-105,699.89

Finding the Fourth Proportional to 186,277.18, 257,055.35 and 105,699.89

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Solution

The fourth proportional to 186,277.18, 257,055.35 and 105,699.89 is: 145,861.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,277.18 : 257,055.35 = 105,699.89 : x
  2. Step 2: Convert to fraction form
    186,277.18/257,055.35 = 105,699.89/x
  3. Step 3: Cross multiply
    186,277.18x = 257,055.35 × 105,699.89
  4. Step 4: Simplify right side
    186,277.18x = 27,170,722,218.91
  5. Step 5: Solve for x
    x = 27,170,722,218.91/186,277.18
  6. Step 6: Final answer
    x = 145,861.79

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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.