Home / 140,356.40-193,689.51-76,692.83

Finding the Fourth Proportional to 140,356.40, 193,689.51 and 76,692.83

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Solution

The fourth proportional to 140,356.40, 193,689.51 and 76,692.83 is: 105,834.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,356.40 : 193,689.51 = 76,692.83 : x
  2. Step 2: Convert to fraction form
    140,356.40/193,689.51 = 76,692.83/x
  3. Step 3: Cross multiply
    140,356.40x = 193,689.51 × 76,692.83
  4. Step 4: Simplify right side
    140,356.40x = 14,854,596,663.21
  5. Step 5: Solve for x
    x = 14,854,596,663.21/140,356.40
  6. Step 6: Final answer
    x = 105,834.84

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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.