Home / 186,490.08-257,182.56-122,717.16

Finding the Fourth Proportional to 186,490.08, 257,182.56 and 122,717.16

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Solution

The fourth proportional to 186,490.08, 257,182.56 and 122,717.16 is: 169,235.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,490.08 : 257,182.56 = 122,717.16 : x
  2. Step 2: Convert to fraction form
    186,490.08/257,182.56 = 122,717.16/x
  3. Step 3: Cross multiply
    186,490.08x = 257,182.56 × 122,717.16
  4. Step 4: Simplify right side
    186,490.08x = 31,560,713,364.73
  5. Step 5: Solve for x
    x = 31,560,713,364.73/186,490.08
  6. Step 6: Final answer
    x = 169,235.35

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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.