Home / 140,885.85-194,442.41-87,188.16

Finding the Fourth Proportional to 140,885.85, 194,442.41 and 87,188.16

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Solution

The fourth proportional to 140,885.85, 194,442.41 and 87,188.16 is: 120,332.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,885.85 : 194,442.41 = 87,188.16 : x
  2. Step 2: Convert to fraction form
    140,885.85/194,442.41 = 87,188.16/x
  3. Step 3: Cross multiply
    140,885.85x = 194,442.41 × 87,188.16
  4. Step 4: Simplify right side
    140,885.85x = 16,953,075,953.87
  5. Step 5: Solve for x
    x = 16,953,075,953.87/140,885.85
  6. Step 6: Final answer
    x = 120,332.00

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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.