Home / 186,717.52-257,631.46-109,178.20

Finding the Fourth Proportional to 186,717.52, 257,631.46 and 109,178.20

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Solution

The fourth proportional to 186,717.52, 257,631.46 and 109,178.20 is: 150,643.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,717.52 : 257,631.46 = 109,178.20 : x
  2. Step 2: Convert to fraction form
    186,717.52/257,631.46 = 109,178.20/x
  3. Step 3: Cross multiply
    186,717.52x = 257,631.46 × 109,178.20
  4. Step 4: Simplify right side
    186,717.52x = 28,127,739,066.17
  5. Step 5: Solve for x
    x = 28,127,739,066.17/186,717.52
  6. Step 6: Final answer
    x = 150,643.28

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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.