Home / 430,595.96-645,926.90-131,102.08

Finding the Fourth Proportional to 430,595.96, 645,926.90 and 131,102.08

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Solution

The fourth proportional to 430,595.96, 645,926.90 and 131,102.08 is: 196,663.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,595.96 : 645,926.90 = 131,102.08 : x
  2. Step 2: Convert to fraction form
    430,595.96/645,926.90 = 131,102.08/x
  3. Step 3: Cross multiply
    430,595.96x = 645,926.90 × 131,102.08
  4. Step 4: Simplify right side
    430,595.96x = 84,682,360,117.95
  5. Step 5: Solve for x
    x = 84,682,360,117.95/430,595.96
  6. Step 6: Final answer
    x = 196,663.16

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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.