Home / 155,833.70-214,998.93-87,842.30

Finding the Fourth Proportional to 155,833.70, 214,998.93 and 87,842.30

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Solution

The fourth proportional to 155,833.70, 214,998.93 and 87,842.30 is: 121,193.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,833.70 : 214,998.93 = 87,842.30 : x
  2. Step 2: Convert to fraction form
    155,833.70/214,998.93 = 87,842.30/x
  3. Step 3: Cross multiply
    155,833.70x = 214,998.93 × 87,842.30
  4. Step 4: Simplify right side
    155,833.70x = 18,886,000,508.74
  5. Step 5: Solve for x
    x = 18,886,000,508.74/155,833.70
  6. Step 6: Final answer
    x = 121,193.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.