Home / 154,208.12-212,927.82-118,341.32

Finding the Fourth Proportional to 154,208.12, 212,927.82 and 118,341.32

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Solution

The fourth proportional to 154,208.12, 212,927.82 and 118,341.32 is: 163,403.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,208.12 : 212,927.82 = 118,341.32 : x
  2. Step 2: Convert to fraction form
    154,208.12/212,927.82 = 118,341.32/x
  3. Step 3: Cross multiply
    154,208.12x = 212,927.82 × 118,341.32
  4. Step 4: Simplify right side
    154,208.12x = 25,198,159,283.52
  5. Step 5: Solve for x
    x = 25,198,159,283.52/154,208.12
  6. Step 6: Final answer
    x = 163,403.58

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1.5x scale

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.