Home / 154,156.41-212,742.05-89,625.33

Finding the Fourth Proportional to 154,156.41, 212,742.05 and 89,625.33

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Solution

The fourth proportional to 154,156.41, 212,742.05 and 89,625.33 is: 123,686.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,156.41 : 212,742.05 = 89,625.33 : x
  2. Step 2: Convert to fraction form
    154,156.41/212,742.05 = 89,625.33/x
  3. Step 3: Cross multiply
    154,156.41x = 212,742.05 × 89,625.33
  4. Step 4: Simplify right side
    154,156.41x = 19,067,075,988.00
  5. Step 5: Solve for x
    x = 19,067,075,988.00/154,156.41
  6. Step 6: Final answer
    x = 123,686.56

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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.