Home / 105,212.43-145,189.08-59,271.15

Finding the Fourth Proportional to 105,212.43, 145,189.08 and 59,271.15

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Solution

The fourth proportional to 105,212.43, 145,189.08 and 59,271.15 is: 81,791.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,212.43 : 145,189.08 = 59,271.15 : x
  2. Step 2: Convert to fraction form
    105,212.43/145,189.08 = 59,271.15/x
  3. Step 3: Cross multiply
    105,212.43x = 145,189.08 × 59,271.15
  4. Step 4: Simplify right side
    105,212.43x = 8,605,523,739.04
  5. Step 5: Solve for x
    x = 8,605,523,739.04/105,212.43
  6. Step 6: Final answer
    x = 81,791.89

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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.