Home / 140,700.38-194,166.51-77,038.34

Finding the Fourth Proportional to 140,700.38, 194,166.51 and 77,038.34

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Solution

The fourth proportional to 140,700.38, 194,166.51 and 77,038.34 is: 106,312.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,700.38 : 194,166.51 = 77,038.34 : x
  2. Step 2: Convert to fraction form
    140,700.38/194,166.51 = 77,038.34/x
  3. Step 3: Cross multiply
    140,700.38x = 194,166.51 × 77,038.34
  4. Step 4: Simplify right side
    140,700.38x = 14,958,265,613.99
  5. Step 5: Solve for x
    x = 14,958,265,613.99/140,700.38
  6. Step 6: Final answer
    x = 106,312.90

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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.