Home / 289,727.54-434,675.14-121,160.86

Finding the Fourth Proportional to 289,727.54, 434,675.14 and 121,160.86

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Solution

The fourth proportional to 289,727.54, 434,675.14 and 121,160.86 is: 181,776.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,727.54 : 434,675.14 = 121,160.86 : x
  2. Step 2: Convert to fraction form
    289,727.54/434,675.14 = 121,160.86/x
  3. Step 3: Cross multiply
    289,727.54x = 434,675.14 × 121,160.86
  4. Step 4: Simplify right side
    289,727.54x = 52,665,613,783.02
  5. Step 5: Solve for x
    x = 52,665,613,783.02/289,727.54
  6. Step 6: Final answer
    x = 181,776.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.