Home / 155,750.50-214,935.77-84,130.52

Finding the Fourth Proportional to 155,750.50, 214,935.77 and 84,130.52

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Solution

The fourth proportional to 155,750.50, 214,935.77 and 84,130.52 is: 116,100.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,750.50 : 214,935.77 = 84,130.52 : x
  2. Step 2: Convert to fraction form
    155,750.50/214,935.77 = 84,130.52/x
  3. Step 3: Cross multiply
    155,750.50x = 214,935.77 × 84,130.52
  4. Step 4: Simplify right side
    155,750.50x = 18,082,657,880.61
  5. Step 5: Solve for x
    x = 18,082,657,880.61/155,750.50
  6. Step 6: Final answer
    x = 116,100.16

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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.