Home / 99,150.24-136,808.10-56,699.76

Finding the Fourth Proportional to 99,150.24, 136,808.10 and 56,699.76

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Solution

The fourth proportional to 99,150.24, 136,808.10 and 56,699.76 is: 78,234.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,150.24 : 136,808.10 = 56,699.76 : x
  2. Step 2: Convert to fraction form
    99,150.24/136,808.10 = 56,699.76/x
  3. Step 3: Cross multiply
    99,150.24x = 136,808.10 × 56,699.76
  4. Step 4: Simplify right side
    99,150.24x = 7,756,986,436.06
  5. Step 5: Solve for x
    x = 7,756,986,436.06/99,150.24
  6. Step 6: Final answer
    x = 78,234.67

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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.