Home / 162,000.30-243,000.45-73,426.80

Finding the Fourth Proportional to 162,000.30, 243,000.45 and 73,426.80

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Solution

The fourth proportional to 162,000.30, 243,000.45 and 73,426.80 is: 110,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,000.30 : 243,000.45 = 73,426.80 : x
  2. Step 2: Convert to fraction form
    162,000.30/243,000.45 = 73,426.80/x
  3. Step 3: Cross multiply
    162,000.30x = 243,000.45 × 73,426.80
  4. Step 4: Simplify right side
    162,000.30x = 17,842,745,442.06
  5. Step 5: Solve for x
    x = 17,842,745,442.06/162,000.30
  6. Step 6: Final answer
    x = 110,140.20

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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.