Home / 145,984.60-218,631.30-89,997.40

Finding the Fourth Proportional to 145,984.60, 218,631.30 and 89,997.40

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Solution

The fourth proportional to 145,984.60, 218,631.30 and 89,997.40 is: 134,783.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,984.60 : 218,631.30 = 89,997.40 : x
  2. Step 2: Convert to fraction form
    145,984.60/218,631.30 = 89,997.40/x
  3. Step 3: Cross multiply
    145,984.60x = 218,631.30 × 89,997.40
  4. Step 4: Simplify right side
    145,984.60x = 19,676,248,558.62
  5. Step 5: Solve for x
    x = 19,676,248,558.62/145,984.60
  6. Step 6: Final answer
    x = 134,783.04

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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.