Home / 99,122.10-136,790.53-56,101.59

Finding the Fourth Proportional to 99,122.10, 136,790.53 and 56,101.59

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Solution

The fourth proportional to 99,122.10, 136,790.53 and 56,101.59 is: 77,421.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,122.10 : 136,790.53 = 56,101.59 : x
  2. Step 2: Convert to fraction form
    99,122.10/136,790.53 = 56,101.59/x
  3. Step 3: Cross multiply
    99,122.10x = 136,790.53 × 56,101.59
  4. Step 4: Simplify right side
    99,122.10x = 7,674,166,229.94
  5. Step 5: Solve for x
    x = 7,674,166,229.94/99,122.10
  6. Step 6: Final answer
    x = 77,421.34

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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.