Home / 119,445.60-164,828.28-65,721.88

Finding the Fourth Proportional to 119,445.60, 164,828.28 and 65,721.88

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Solution

The fourth proportional to 119,445.60, 164,828.28 and 65,721.88 is: 90,692.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,445.60 : 164,828.28 = 65,721.88 : x
  2. Step 2: Convert to fraction form
    119,445.60/164,828.28 = 65,721.88/x
  3. Step 3: Cross multiply
    119,445.60x = 164,828.28 × 65,721.88
  4. Step 4: Simplify right side
    119,445.60x = 10,832,824,438.77
  5. Step 5: Solve for x
    x = 10,832,824,438.77/119,445.60
  6. Step 6: Final answer
    x = 90,692.54

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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.