Home / 155,788.86-214,988.29-84,168.66

Finding the Fourth Proportional to 155,788.86, 214,988.29 and 84,168.66

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Solution

The fourth proportional to 155,788.86, 214,988.29 and 84,168.66 is: 116,152.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,788.86 : 214,988.29 = 84,168.66 : x
  2. Step 2: Convert to fraction form
    155,788.86/214,988.29 = 84,168.66/x
  3. Step 3: Cross multiply
    155,788.86x = 214,988.29 × 84,168.66
  4. Step 4: Simplify right side
    155,788.86x = 18,095,276,284.99
  5. Step 5: Solve for x
    x = 18,095,276,284.99/155,788.86
  6. Step 6: Final answer
    x = 116,152.57

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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.