Home / 140,235.91-193,525.80-76,572.35

Finding the Fourth Proportional to 140,235.91, 193,525.80 and 76,572.35

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Solution

The fourth proportional to 140,235.91, 193,525.80 and 76,572.35 is: 105,669.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,235.91 : 193,525.80 = 76,572.35 : x
  2. Step 2: Convert to fraction form
    140,235.91/193,525.80 = 76,572.35/x
  3. Step 3: Cross multiply
    140,235.91x = 193,525.80 × 76,572.35
  4. Step 4: Simplify right side
    140,235.91x = 14,818,725,291.63
  5. Step 5: Solve for x
    x = 14,818,725,291.63/140,235.91
  6. Step 6: Final answer
    x = 105,669.98

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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.