Home / 155,519.04-214,542.36-91,814.16

Finding the Fourth Proportional to 155,519.04, 214,542.36 and 91,814.16

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Solution

The fourth proportional to 155,519.04, 214,542.36 and 91,814.16 is: 126,659.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,519.04 : 214,542.36 = 91,814.16 : x
  2. Step 2: Convert to fraction form
    155,519.04/214,542.36 = 91,814.16/x
  3. Step 3: Cross multiply
    155,519.04x = 214,542.36 × 91,814.16
  4. Step 4: Simplify right side
    155,519.04x = 19,698,026,567.82
  5. Step 5: Solve for x
    x = 19,698,026,567.82/155,519.04
  6. Step 6: Final answer
    x = 126,659.90

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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.