Home / 229,373.55-316,535.51-128,771.55

Finding the Fourth Proportional to 229,373.55, 316,535.51 and 128,771.55

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Solution

The fourth proportional to 229,373.55, 316,535.51 and 128,771.55 is: 177,704.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,373.55 : 316,535.51 = 128,771.55 : x
  2. Step 2: Convert to fraction form
    229,373.55/316,535.51 = 128,771.55/x
  3. Step 3: Cross multiply
    229,373.55x = 316,535.51 × 128,771.55
  4. Step 4: Simplify right side
    229,373.55x = 40,760,768,252.74
  5. Step 5: Solve for x
    x = 40,760,768,252.74/229,373.55
  6. Step 6: Final answer
    x = 177,704.75

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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.