Home / 154,140.60-231,221.70-65,384.04

Finding the Fourth Proportional to 154,140.60, 231,221.70 and 65,384.04

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Solution

The fourth proportional to 154,140.60, 231,221.70 and 65,384.04 is: 98,080.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,140.60 : 231,221.70 = 65,384.04 : x
  2. Step 2: Convert to fraction form
    154,140.60/231,221.70 = 65,384.04/x
  3. Step 3: Cross multiply
    154,140.60x = 231,221.70 × 65,384.04
  4. Step 4: Simplify right side
    154,140.60x = 15,118,208,881.67
  5. Step 5: Solve for x
    x = 15,118,208,881.67/154,140.60
  6. Step 6: Final answer
    x = 98,080.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.