Home / 154,668.43-213,460.14-86,703.76

Finding the Fourth Proportional to 154,668.43, 213,460.14 and 86,703.76

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Solution

The fourth proportional to 154,668.43, 213,460.14 and 86,703.76 is: 119,661.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,668.43 : 213,460.14 = 86,703.76 : x
  2. Step 2: Convert to fraction form
    154,668.43/213,460.14 = 86,703.76/x
  3. Step 3: Cross multiply
    154,668.43x = 213,460.14 × 86,703.76
  4. Step 4: Simplify right side
    154,668.43x = 18,507,796,748.13
  5. Step 5: Solve for x
    x = 18,507,796,748.13/154,668.43
  6. Step 6: Final answer
    x = 119,661.11

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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.