Home / 155,823.84-215,178.53-117,517.77

Finding the Fourth Proportional to 155,823.84, 215,178.53 and 117,517.77

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Solution

The fourth proportional to 155,823.84, 215,178.53 and 117,517.77 is: 162,281.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,823.84 : 215,178.53 = 117,517.77 : x
  2. Step 2: Convert to fraction form
    155,823.84/215,178.53 = 117,517.77/x
  3. Step 3: Cross multiply
    155,823.84x = 215,178.53 × 117,517.77
  4. Step 4: Simplify right side
    155,823.84x = 25,287,300,409.89
  5. Step 5: Solve for x
    x = 25,287,300,409.89/155,823.84
  6. Step 6: Final answer
    x = 162,281.33

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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.