Home / 155,379.02-214,429.56-91,716.80

Finding the Fourth Proportional to 155,379.02, 214,429.56 and 91,716.80

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Solution

The fourth proportional to 155,379.02, 214,429.56 and 91,716.80 is: 126,573.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,379.02 : 214,429.56 = 91,716.80 : x
  2. Step 2: Convert to fraction form
    155,379.02/214,429.56 = 91,716.80/x
  3. Step 3: Cross multiply
    155,379.02x = 214,429.56 × 91,716.80
  4. Step 4: Simplify right side
    155,379.02x = 19,666,793,068.61
  5. Step 5: Solve for x
    x = 19,666,793,068.61/155,379.02
  6. Step 6: Final answer
    x = 126,573.03

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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.