Home / 131,488.68-197,214.62-42,743.40

Finding the Fourth Proportional to 131,488.68, 197,214.62 and 42,743.40

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Solution

The fourth proportional to 131,488.68, 197,214.62 and 42,743.40 is: 64,109.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,488.68 : 197,214.62 = 42,743.40 : x
  2. Step 2: Convert to fraction form
    131,488.68/197,214.62 = 42,743.40/x
  3. Step 3: Cross multiply
    131,488.68x = 197,214.62 × 42,743.40
  4. Step 4: Simplify right side
    131,488.68x = 8,429,623,388.51
  5. Step 5: Solve for x
    x = 8,429,623,388.51/131,488.68
  6. Step 6: Final answer
    x = 64,109.12

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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.