Home / 131,212.10-196,776.64-42,444.84

Finding the Fourth Proportional to 131,212.10, 196,776.64 and 42,444.84

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Solution

The fourth proportional to 131,212.10, 196,776.64 and 42,444.84 is: 63,653.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,212.10 : 196,776.64 = 42,444.84 : x
  2. Step 2: Convert to fraction form
    131,212.10/196,776.64 = 42,444.84/x
  3. Step 3: Cross multiply
    131,212.10x = 196,776.64 × 42,444.84
  4. Step 4: Simplify right side
    131,212.10x = 8,352,153,791.51
  5. Step 5: Solve for x
    x = 8,352,153,791.51/131,212.10
  6. Step 6: Final answer
    x = 63,653.84

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1.5x scale

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.