Home / 140,038.94-193,220.51-79,604.81

Finding the Fourth Proportional to 140,038.94, 193,220.51 and 79,604.81

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Solution

The fourth proportional to 140,038.94, 193,220.51 and 79,604.81 is: 109,835.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,038.94 : 193,220.51 = 79,604.81 : x
  2. Step 2: Convert to fraction form
    140,038.94/193,220.51 = 79,604.81/x
  3. Step 3: Cross multiply
    140,038.94x = 193,220.51 × 79,604.81
  4. Step 4: Simplify right side
    140,038.94x = 15,381,281,347.10
  5. Step 5: Solve for x
    x = 15,381,281,347.10/140,038.94
  6. Step 6: Final answer
    x = 109,835.74

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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.