Home / 154,622.31-213,341.81-90,052.35

Finding the Fourth Proportional to 154,622.31, 213,341.81 and 90,052.35

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Solution

The fourth proportional to 154,622.31, 213,341.81 and 90,052.35 is: 124,250.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,622.31 : 213,341.81 = 90,052.35 : x
  2. Step 2: Convert to fraction form
    154,622.31/213,341.81 = 90,052.35/x
  3. Step 3: Cross multiply
    154,622.31x = 213,341.81 × 90,052.35
  4. Step 4: Simplify right side
    154,622.31x = 19,211,931,343.75
  5. Step 5: Solve for x
    x = 19,211,931,343.75/154,622.31
  6. Step 6: Final answer
    x = 124,250.71

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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.