Home / 99,217.01-136,931.43-56,774.63

Finding the Fourth Proportional to 99,217.01, 136,931.43 and 56,774.63

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Solution

The fourth proportional to 99,217.01, 136,931.43 and 56,774.63 is: 78,355.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,217.01 : 136,931.43 = 56,774.63 : x
  2. Step 2: Convert to fraction form
    99,217.01/136,931.43 = 56,774.63/x
  3. Step 3: Cross multiply
    99,217.01x = 136,931.43 × 56,774.63
  4. Step 4: Simplify right side
    99,217.01x = 7,774,230,588.96
  5. Step 5: Solve for x
    x = 7,774,230,588.96/99,217.01
  6. Step 6: Final answer
    x = 78,355.83

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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.