Home / 99,201.51-136,891.01-56,168.64

Finding the Fourth Proportional to 99,201.51, 136,891.01 and 56,168.64

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Solution

The fourth proportional to 99,201.51, 136,891.01 and 56,168.64 is: 77,508.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,201.51 : 136,891.01 = 56,168.64 : x
  2. Step 2: Convert to fraction form
    99,201.51/136,891.01 = 56,168.64/x
  3. Step 3: Cross multiply
    99,201.51x = 136,891.01 × 56,168.64
  4. Step 4: Simplify right side
    99,201.51x = 7,688,982,000.35
  5. Step 5: Solve for x
    x = 7,688,982,000.35/99,201.51
  6. Step 6: Final answer
    x = 77,508.72

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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.