Home / 154,875.37-213,803.09-103,869.44

Finding the Fourth Proportional to 154,875.37, 213,803.09 and 103,869.44

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Solution

The fourth proportional to 154,875.37, 213,803.09 and 103,869.44 is: 143,390.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,875.37 : 213,803.09 = 103,869.44 : x
  2. Step 2: Convert to fraction form
    154,875.37/213,803.09 = 103,869.44/x
  3. Step 3: Cross multiply
    154,875.37x = 213,803.09 × 103,869.44
  4. Step 4: Simplify right side
    154,875.37x = 22,207,607,415.74
  5. Step 5: Solve for x
    x = 22,207,607,415.74/154,875.37
  6. Step 6: Final answer
    x = 143,390.18

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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.