Home / 154,629.74-213,402.63-90,095.63

Finding the Fourth Proportional to 154,629.74, 213,402.63 and 90,095.63

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Solution

The fourth proportional to 154,629.74, 213,402.63 and 90,095.63 is: 124,339.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,629.74 : 213,402.63 = 90,095.63 : x
  2. Step 2: Convert to fraction form
    154,629.74/213,402.63 = 90,095.63/x
  3. Step 3: Cross multiply
    154,629.74x = 213,402.63 × 90,095.63
  4. Step 4: Simplify right side
    154,629.74x = 19,226,643,895.55
  5. Step 5: Solve for x
    x = 19,226,643,895.55/154,629.74
  6. Step 6: Final answer
    x = 124,339.88

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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.