Home / 119,890.48-165,347.30-72,134.92

Finding the Fourth Proportional to 119,890.48, 165,347.30 and 72,134.92

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Solution

The fourth proportional to 119,890.48, 165,347.30 and 72,134.92 is: 99,485.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,890.48 : 165,347.30 = 72,134.92 : x
  2. Step 2: Convert to fraction form
    119,890.48/165,347.30 = 72,134.92/x
  3. Step 3: Cross multiply
    119,890.48x = 165,347.30 × 72,134.92
  4. Step 4: Simplify right side
    119,890.48x = 11,927,314,257.72
  5. Step 5: Solve for x
    x = 11,927,314,257.72/119,890.48
  6. Step 6: Final answer
    x = 99,485.08

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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.