Home / 162,000.30-243,000.45-99,705.90

Finding the Fourth Proportional to 162,000.30, 243,000.45 and 99,705.90

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Solution

The fourth proportional to 162,000.30, 243,000.45 and 99,705.90 is: 149,558.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,000.30 : 243,000.45 = 99,705.90 : x
  2. Step 2: Convert to fraction form
    162,000.30/243,000.45 = 99,705.90/x
  3. Step 3: Cross multiply
    162,000.30x = 243,000.45 × 99,705.90
  4. Step 4: Simplify right side
    162,000.30x = 24,228,578,567.66
  5. Step 5: Solve for x
    x = 24,228,578,567.66/162,000.30
  6. Step 6: Final answer
    x = 149,558.85

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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.