Home / 119,774.42-165,317.57-72,018.52

Finding the Fourth Proportional to 119,774.42, 165,317.57 and 72,018.52

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Solution

The fourth proportional to 119,774.42, 165,317.57 and 72,018.52 is: 99,402.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,774.42 : 165,317.57 = 72,018.52 : x
  2. Step 2: Convert to fraction form
    119,774.42/165,317.57 = 72,018.52/x
  3. Step 3: Cross multiply
    119,774.42x = 165,317.57 × 72,018.52
  4. Step 4: Simplify right side
    119,774.42x = 11,905,926,721.40
  5. Step 5: Solve for x
    x = 11,905,926,721.40/119,774.42
  6. Step 6: Final answer
    x = 99,402.92

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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.