Home / 140,192.93-193,465.23-76,530.71

Finding the Fourth Proportional to 140,192.93, 193,465.23 and 76,530.71

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Solution

The fourth proportional to 140,192.93, 193,465.23 and 76,530.71 is: 105,611.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,192.93 : 193,465.23 = 76,530.71 : x
  2. Step 2: Convert to fraction form
    140,192.93/193,465.23 = 76,530.71/x
  3. Step 3: Cross multiply
    140,192.93x = 193,465.23 × 76,530.71
  4. Step 4: Simplify right side
    140,192.93x = 14,806,031,412.21
  5. Step 5: Solve for x
    x = 14,806,031,412.21/140,192.93
  6. Step 6: Final answer
    x = 105,611.83

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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.