Home / 162,318.12-243,459.90-76,908.36

Finding the Fourth Proportional to 162,318.12, 243,459.90 and 76,908.36

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Solution

The fourth proportional to 162,318.12, 243,459.90 and 76,908.36 is: 115,354.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,318.12 : 243,459.90 = 76,908.36 : x
  2. Step 2: Convert to fraction form
    162,318.12/243,459.90 = 76,908.36/x
  3. Step 3: Cross multiply
    162,318.12x = 243,459.90 × 76,908.36
  4. Step 4: Simplify right side
    162,318.12x = 18,724,101,634.76
  5. Step 5: Solve for x
    x = 18,724,101,634.76/162,318.12
  6. Step 6: Final answer
    x = 115,354.35

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1.5x scale

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.