Home / 153,933.98-212,372.70-90,259.43

Finding the Fourth Proportional to 153,933.98, 212,372.70 and 90,259.43

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Solution

The fourth proportional to 153,933.98, 212,372.70 and 90,259.43 is: 124,525.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,933.98 : 212,372.70 = 90,259.43 : x
  2. Step 2: Convert to fraction form
    153,933.98/212,372.70 = 90,259.43/x
  3. Step 3: Cross multiply
    153,933.98x = 212,372.70 × 90,259.43
  4. Step 4: Simplify right side
    153,933.98x = 19,168,638,849.56
  5. Step 5: Solve for x
    x = 19,168,638,849.56/153,933.98
  6. Step 6: Final answer
    x = 124,525.06

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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.