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Finding the Fourth Proportional to 130,363, 179,900.94 and 73,774.51

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Solution

The fourth proportional to 130,363, 179,900.94 and 73,774.51 is: 101,808.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,363 : 179,900.94 = 73,774.51 : x
  2. Step 2: Convert to fraction form
    130,363/179,900.94 = 73,774.51/x
  3. Step 3: Cross multiply
    130,363x = 179,900.94 × 73,774.51
  4. Step 4: Simplify right side
    130,363x = 13,272,103,697.04
  5. Step 5: Solve for x
    x = 13,272,103,697.04/130,363
  6. Step 6: Final answer
    x = 101,808.82

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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.