Home / 165,000.70-247,501.05-118,690.30

Finding the Fourth Proportional to 165,000.70, 247,501.05 and 118,690.30

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Solution

The fourth proportional to 165,000.70, 247,501.05 and 118,690.30 is: 178,035.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,000.70 : 247,501.05 = 118,690.30 : x
  2. Step 2: Convert to fraction form
    165,000.70/247,501.05 = 118,690.30/x
  3. Step 3: Cross multiply
    165,000.70x = 247,501.05 × 118,690.30
  4. Step 4: Simplify right side
    165,000.70x = 29,375,973,874.82
  5. Step 5: Solve for x
    x = 29,375,973,874.82/165,000.70
  6. Step 6: Final answer
    x = 178,035.45

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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.