Home / 154,145.66-212,727.21-89,614.58

Finding the Fourth Proportional to 154,145.66, 212,727.21 and 89,614.58

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Solution

The fourth proportional to 154,145.66, 212,727.21 and 89,614.58 is: 123,671.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,145.66 : 212,727.21 = 89,614.58 : x
  2. Step 2: Convert to fraction form
    154,145.66/212,727.21 = 89,614.58/x
  3. Step 3: Cross multiply
    154,145.66x = 212,727.21 × 89,614.58
  4. Step 4: Simplify right side
    154,145.66x = 19,063,459,578.72
  5. Step 5: Solve for x
    x = 19,063,459,578.72/154,145.66
  6. Step 6: Final answer
    x = 123,671.72

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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.