Home / 191,421.60-286,989.12-132,087.84

Finding the Fourth Proportional to 191,421.60, 286,989.12 and 132,087.84

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Solution

The fourth proportional to 191,421.60, 286,989.12 and 132,087.84 is: 198,032.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,421.60 : 286,989.12 = 132,087.84 : x
  2. Step 2: Convert to fraction form
    191,421.60/286,989.12 = 132,087.84/x
  3. Step 3: Cross multiply
    191,421.60x = 286,989.12 × 132,087.84
  4. Step 4: Simplify right side
    191,421.60x = 37,907,772,964.30
  5. Step 5: Solve for x
    x = 37,907,772,964.30/191,421.60
  6. Step 6: Final answer
    x = 198,032.89

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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.