Home / 119,885.40-165,430.06-66,166.94

Finding the Fourth Proportional to 119,885.40, 165,430.06 and 66,166.94

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Solution

The fourth proportional to 119,885.40, 165,430.06 and 66,166.94 is: 91,303.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,885.40 : 165,430.06 = 66,166.94 : x
  2. Step 2: Convert to fraction form
    119,885.40/165,430.06 = 66,166.94/x
  3. Step 3: Cross multiply
    119,885.40x = 165,430.06 × 66,166.94
  4. Step 4: Simplify right side
    119,885.40x = 10,946,001,102.37
  5. Step 5: Solve for x
    x = 10,946,001,102.37/119,885.40
  6. Step 6: Final answer
    x = 91,303.87

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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.