Home / 112,298.61-154,998.10-64,579.49

Finding the Fourth Proportional to 112,298.61, 154,998.10 and 64,579.49

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Solution

The fourth proportional to 112,298.61, 154,998.10 and 64,579.49 is: 89,134.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,298.61 : 154,998.10 = 64,579.49 : x
  2. Step 2: Convert to fraction form
    112,298.61/154,998.10 = 64,579.49/x
  3. Step 3: Cross multiply
    112,298.61x = 154,998.10 × 64,579.49
  4. Step 4: Simplify right side
    112,298.61x = 10,009,698,248.97
  5. Step 5: Solve for x
    x = 10,009,698,248.97/112,298.61
  6. Step 6: Final answer
    x = 89,134.66

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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.