Home / 154,859.37-213,781.02-103,853.52

Finding the Fourth Proportional to 154,859.37, 213,781.02 and 103,853.52

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Solution

The fourth proportional to 154,859.37, 213,781.02 and 103,853.52 is: 143,368.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,859.37 : 213,781.02 = 103,853.52 : x
  2. Step 2: Convert to fraction form
    154,859.37/213,781.02 = 103,853.52/x
  3. Step 3: Cross multiply
    154,859.37x = 213,781.02 × 103,853.52
  4. Step 4: Simplify right side
    154,859.37x = 22,201,911,436.19
  5. Step 5: Solve for x
    x = 22,201,911,436.19/154,859.37
  6. Step 6: Final answer
    x = 143,368.21

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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.