Home / 155,267.71-214,277.87-86,364.45

Finding the Fourth Proportional to 155,267.71, 214,277.87 and 86,364.45

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Solution

The fourth proportional to 155,267.71, 214,277.87 and 86,364.45 is: 119,187.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,267.71 : 214,277.87 = 86,364.45 : x
  2. Step 2: Convert to fraction form
    155,267.71/214,277.87 = 86,364.45/x
  3. Step 3: Cross multiply
    155,267.71x = 214,277.87 × 86,364.45
  4. Step 4: Simplify right side
    155,267.71x = 18,505,990,605.63
  5. Step 5: Solve for x
    x = 18,505,990,605.63/155,267.71
  6. Step 6: Final answer
    x = 119,187.63

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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.