Home / 162,116.28-243,207-56,921.40

Finding the Fourth Proportional to 162,116.28, 243,207 and 56,921.40

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Solution

The fourth proportional to 162,116.28, 243,207 and 56,921.40 is: 85,393.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,116.28 : 243,207 = 56,921.40 : x
  2. Step 2: Convert to fraction form
    162,116.28/243,207 = 56,921.40/x
  3. Step 3: Cross multiply
    162,116.28x = 243,207 × 56,921.40
  4. Step 4: Simplify right side
    162,116.28x = 13,843,682,929.80
  5. Step 5: Solve for x
    x = 13,843,682,929.80/162,116.28
  6. Step 6: Final answer
    x = 85,393.54

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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.