Home / 105,095.25-145,031.45-67,369.50

Finding the Fourth Proportional to 105,095.25, 145,031.45 and 67,369.50

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Solution

The fourth proportional to 105,095.25, 145,031.45 and 67,369.50 is: 92,969.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,095.25 : 145,031.45 = 67,369.50 : x
  2. Step 2: Convert to fraction form
    105,095.25/145,031.45 = 67,369.50/x
  3. Step 3: Cross multiply
    105,095.25x = 145,031.45 × 67,369.50
  4. Step 4: Simplify right side
    105,095.25x = 9,770,695,933.93
  5. Step 5: Solve for x
    x = 9,770,695,933.93/105,095.25
  6. Step 6: Final answer
    x = 92,969.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.