Home / 114,238.54-157,543.83-78,365.26

Finding the Fourth Proportional to 114,238.54, 157,543.83 and 78,365.26

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Solution

The fourth proportional to 114,238.54, 157,543.83 and 78,365.26 is: 108,071.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,238.54 : 157,543.83 = 78,365.26 : x
  2. Step 2: Convert to fraction form
    114,238.54/157,543.83 = 78,365.26/x
  3. Step 3: Cross multiply
    114,238.54x = 157,543.83 × 78,365.26
  4. Step 4: Simplify right side
    114,238.54x = 12,345,963,199.35
  5. Step 5: Solve for x
    x = 12,345,963,199.35/114,238.54
  6. Step 6: Final answer
    x = 108,071.79

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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.