Home / 207,112.08-285,539.40-135,368.76

Finding the Fourth Proportional to 207,112.08, 285,539.40 and 135,368.76

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Solution

The fourth proportional to 207,112.08, 285,539.40 and 135,368.76 is: 186,628.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,112.08 : 285,539.40 = 135,368.76 : x
  2. Step 2: Convert to fraction form
    207,112.08/285,539.40 = 135,368.76/x
  3. Step 3: Cross multiply
    207,112.08x = 285,539.40 × 135,368.76
  4. Step 4: Simplify right side
    207,112.08x = 38,653,114,509.14
  5. Step 5: Solve for x
    x = 38,653,114,509.14/207,112.08
  6. Step 6: Final answer
    x = 186,628.97

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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.