Home / 154,941.32-213,826.02-121,349

Finding the Fourth Proportional to 154,941.32, 213,826.02 and 121,349

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Solution

The fourth proportional to 154,941.32, 213,826.02 and 121,349 is: 167,467.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,941.32 : 213,826.02 = 121,349 : x
  2. Step 2: Convert to fraction form
    154,941.32/213,826.02 = 121,349/x
  3. Step 3: Cross multiply
    154,941.32x = 213,826.02 × 121,349
  4. Step 4: Simplify right side
    154,941.32x = 25,947,573,700.98
  5. Step 5: Solve for x
    x = 25,947,573,700.98/154,941.32
  6. Step 6: Final answer
    x = 167,467.10

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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.