Home / 212,830.85-293,706.47-122,192.66

Finding the Fourth Proportional to 212,830.85, 293,706.47 and 122,192.66

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Solution

The fourth proportional to 212,830.85, 293,706.47 and 122,192.66 is: 168,625.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,830.85 : 293,706.47 = 122,192.66 : x
  2. Step 2: Convert to fraction form
    212,830.85/293,706.47 = 122,192.66/x
  3. Step 3: Cross multiply
    212,830.85x = 293,706.47 × 122,192.66
  4. Step 4: Simplify right side
    212,830.85x = 35,888,774,828.51
  5. Step 5: Solve for x
    x = 35,888,774,828.51/212,830.85
  6. Step 6: Final answer
    x = 168,625.81

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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.