Home / 105,264.30-145,261.26-66,522.83

Finding the Fourth Proportional to 105,264.30, 145,261.26 and 66,522.83

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Solution

The fourth proportional to 105,264.30, 145,261.26 and 66,522.83 is: 91,799.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,264.30 : 145,261.26 = 66,522.83 : x
  2. Step 2: Convert to fraction form
    105,264.30/145,261.26 = 66,522.83/x
  3. Step 3: Cross multiply
    105,264.30x = 145,261.26 × 66,522.83
  4. Step 4: Simplify right side
    105,264.30x = 9,663,190,094.63
  5. Step 5: Solve for x
    x = 9,663,190,094.63/105,264.30
  6. Step 6: Final answer
    x = 91,799.31

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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.