Home / 162,421.38-243,673.56-67,620.15

Finding the Fourth Proportional to 162,421.38, 243,673.56 and 67,620.15

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Solution

The fourth proportional to 162,421.38, 243,673.56 and 67,620.15 is: 101,447.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,421.38 : 243,673.56 = 67,620.15 : x
  2. Step 2: Convert to fraction form
    162,421.38/243,673.56 = 67,620.15/x
  3. Step 3: Cross multiply
    162,421.38x = 243,673.56 × 67,620.15
  4. Step 4: Simplify right side
    162,421.38x = 16,477,242,678.23
  5. Step 5: Solve for x
    x = 16,477,242,678.23/162,421.38
  6. Step 6: Final answer
    x = 101,447.50

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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.