Home / 154,080.90-212,625.49-89,547.09

Finding the Fourth Proportional to 154,080.90, 212,625.49 and 89,547.09

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Solution

The fourth proportional to 154,080.90, 212,625.49 and 89,547.09 is: 123,571.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,080.90 : 212,625.49 = 89,547.09 : x
  2. Step 2: Convert to fraction form
    154,080.90/212,625.49 = 89,547.09/x
  3. Step 3: Cross multiply
    154,080.90x = 212,625.49 × 89,547.09
  4. Step 4: Simplify right side
    154,080.90x = 19,039,993,889.32
  5. Step 5: Solve for x
    x = 19,039,993,889.32/154,080.90
  6. Step 6: Final answer
    x = 123,571.41

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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.