Home / 162,000.20-243,000.30-122,083.40

Finding the Fourth Proportional to 162,000.20, 243,000.30 and 122,083.40

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Solution

The fourth proportional to 162,000.20, 243,000.30 and 122,083.40 is: 183,125.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,000.20 : 243,000.30 = 122,083.40 : x
  2. Step 2: Convert to fraction form
    162,000.20/243,000.30 = 122,083.40/x
  3. Step 3: Cross multiply
    162,000.20x = 243,000.30 × 122,083.40
  4. Step 4: Simplify right side
    162,000.20x = 29,666,302,825.02
  5. Step 5: Solve for x
    x = 29,666,302,825.02/162,000.20
  6. Step 6: Final answer
    x = 183,125.10

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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.