Home / 155,283.08-214,285.68-87,302.93

Finding the Fourth Proportional to 155,283.08, 214,285.68 and 87,302.93

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Solution

The fourth proportional to 155,283.08, 214,285.68 and 87,302.93 is: 120,475.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,283.08 : 214,285.68 = 87,302.93 : x
  2. Step 2: Convert to fraction form
    155,283.08/214,285.68 = 87,302.93/x
  3. Step 3: Cross multiply
    155,283.08x = 214,285.68 × 87,302.93
  4. Step 4: Simplify right side
    155,283.08x = 18,707,766,649.61
  5. Step 5: Solve for x
    x = 18,707,766,649.61/155,283.08
  6. Step 6: Final answer
    x = 120,475.25

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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.