Home / 153,933.48-212,372.01-90,258.93

Finding the Fourth Proportional to 153,933.48, 212,372.01 and 90,258.93

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Solution

The fourth proportional to 153,933.48, 212,372.01 and 90,258.93 is: 124,524.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,933.48 : 212,372.01 = 90,258.93 : x
  2. Step 2: Convert to fraction form
    153,933.48/212,372.01 = 90,258.93/x
  3. Step 3: Cross multiply
    153,933.48x = 212,372.01 × 90,258.93
  4. Step 4: Simplify right side
    153,933.48x = 19,168,470,384.55
  5. Step 5: Solve for x
    x = 19,168,470,384.55/153,933.48
  6. Step 6: Final answer
    x = 124,524.37

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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.