Home / 154,056.88-212,599.96-90,395.76

Finding the Fourth Proportional to 154,056.88, 212,599.96 and 90,395.76

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Solution

The fourth proportional to 154,056.88, 212,599.96 and 90,395.76 is: 124,747.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,056.88 : 212,599.96 = 90,395.76 : x
  2. Step 2: Convert to fraction form
    154,056.88/212,599.96 = 90,395.76/x
  3. Step 3: Cross multiply
    154,056.88x = 212,599.96 × 90,395.76
  4. Step 4: Simplify right side
    154,056.88x = 19,218,134,960.17
  5. Step 5: Solve for x
    x = 19,218,134,960.17/154,056.88
  6. Step 6: Final answer
    x = 124,747.01

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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.