Home / 186,728.34-278,901.87-168,931.56

Finding the Fourth Proportional to 186,728.34, 278,901.87 and 168,931.56

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Solution

The fourth proportional to 186,728.34, 278,901.87 and 168,931.56 is: 252,320.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,728.34 : 278,901.87 = 168,931.56 : x
  2. Step 2: Convert to fraction form
    186,728.34/278,901.87 = 168,931.56/x
  3. Step 3: Cross multiply
    186,728.34x = 278,901.87 × 168,931.56
  4. Step 4: Simplify right side
    186,728.34x = 47,115,326,169.18
  5. Step 5: Solve for x
    x = 47,115,326,169.18/186,728.34
  6. Step 6: Final answer
    x = 252,320.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.