Home / 190,695.06-286,134.75-78,458.10

Finding the Fourth Proportional to 190,695.06, 286,134.75 and 78,458.10

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Solution

The fourth proportional to 190,695.06, 286,134.75 and 78,458.10 is: 117,725.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,695.06 : 286,134.75 = 78,458.10 : x
  2. Step 2: Convert to fraction form
    190,695.06/286,134.75 = 78,458.10/x
  3. Step 3: Cross multiply
    190,695.06x = 286,134.75 × 78,458.10
  4. Step 4: Simplify right side
    190,695.06x = 22,449,588,828.98
  5. Step 5: Solve for x
    x = 22,449,588,828.98/190,695.06
  6. Step 6: Final answer
    x = 117,725.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.