Home / 154,881.42-213,811.44-103,875.51

Finding the Fourth Proportional to 154,881.42, 213,811.44 and 103,875.51

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Solution

The fourth proportional to 154,881.42, 213,811.44 and 103,875.51 is: 143,398.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,881.42 : 213,811.44 = 103,875.51 : x
  2. Step 2: Convert to fraction form
    154,881.42/213,811.44 = 103,875.51/x
  3. Step 3: Cross multiply
    154,881.42x = 213,811.44 × 103,875.51
  4. Step 4: Simplify right side
    154,881.42x = 22,209,772,373.83
  5. Step 5: Solve for x
    x = 22,209,772,373.83/154,881.42
  6. Step 6: Final answer
    x = 143,398.56

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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.