Home / 131,858.04-181,960.34-77,409.35

Finding the Fourth Proportional to 131,858.04, 181,960.34 and 77,409.35

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Solution

The fourth proportional to 131,858.04, 181,960.34 and 77,409.35 is: 106,822.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,858.04 : 181,960.34 = 77,409.35 : x
  2. Step 2: Convert to fraction form
    131,858.04/181,960.34 = 77,409.35/x
  3. Step 3: Cross multiply
    131,858.04x = 181,960.34 × 77,409.35
  4. Step 4: Simplify right side
    131,858.04x = 14,085,431,645.18
  5. Step 5: Solve for x
    x = 14,085,431,645.18/131,858.04
  6. Step 6: Final answer
    x = 106,822.70

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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.