Home / 105,203.06-145,142.61-62,173.46

Finding the Fourth Proportional to 105,203.06, 145,142.61 and 62,173.46

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Solution

The fourth proportional to 105,203.06, 145,142.61 and 62,173.46 is: 85,777.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,203.06 : 145,142.61 = 62,173.46 : x
  2. Step 2: Convert to fraction form
    105,203.06/145,142.61 = 62,173.46/x
  3. Step 3: Cross multiply
    105,203.06x = 145,142.61 × 62,173.46
  4. Step 4: Simplify right side
    105,203.06x = 9,024,018,257.13
  5. Step 5: Solve for x
    x = 9,024,018,257.13/105,203.06
  6. Step 6: Final answer
    x = 85,777.15

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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.