Home / 131,307.06-181,141.84-77,556.26

Finding the Fourth Proportional to 131,307.06, 181,141.84 and 77,556.26

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Solution

The fourth proportional to 131,307.06, 181,141.84 and 77,556.26 is: 106,991.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,307.06 : 181,141.84 = 77,556.26 : x
  2. Step 2: Convert to fraction form
    131,307.06/181,141.84 = 77,556.26/x
  3. Step 3: Cross multiply
    131,307.06x = 181,141.84 × 77,556.26
  4. Step 4: Simplify right side
    131,307.06x = 14,048,683,639.92
  5. Step 5: Solve for x
    x = 14,048,683,639.92/131,307.06
  6. Step 6: Final answer
    x = 106,991.08

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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.