Home / 124,212.58-171,613.77-86,654.50

Finding the Fourth Proportional to 124,212.58, 171,613.77 and 86,654.50

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Solution

The fourth proportional to 124,212.58, 171,613.77 and 86,654.50 is: 119,723.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,212.58 : 171,613.77 = 86,654.50 : x
  2. Step 2: Convert to fraction form
    124,212.58/171,613.77 = 86,654.50/x
  3. Step 3: Cross multiply
    124,212.58x = 171,613.77 × 86,654.50
  4. Step 4: Simplify right side
    124,212.58x = 14,871,105,432.47
  5. Step 5: Solve for x
    x = 14,871,105,432.47/124,212.58
  6. Step 6: Final answer
    x = 119,723.02

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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.