Home / 99,223.56-136,931.61-56,795.76

Finding the Fourth Proportional to 99,223.56, 136,931.61 and 56,795.76

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Solution

The fourth proportional to 99,223.56, 136,931.61 and 56,795.76 is: 78,379.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,223.56 : 136,931.61 = 56,795.76 : x
  2. Step 2: Convert to fraction form
    99,223.56/136,931.61 = 56,795.76/x
  3. Step 3: Cross multiply
    99,223.56x = 136,931.61 × 56,795.76
  4. Step 4: Simplify right side
    99,223.56x = 7,777,134,857.97
  5. Step 5: Solve for x
    x = 7,777,134,857.97/99,223.56
  6. Step 6: Final answer
    x = 78,379.92

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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.