Home / 176,255.55-243,206.91-100,789.47

Finding the Fourth Proportional to 176,255.55, 243,206.91 and 100,789.47

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Solution

The fourth proportional to 176,255.55, 243,206.91 and 100,789.47 is: 139,074.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,255.55 : 243,206.91 = 100,789.47 : x
  2. Step 2: Convert to fraction form
    176,255.55/243,206.91 = 100,789.47/x
  3. Step 3: Cross multiply
    176,255.55x = 243,206.91 × 100,789.47
  4. Step 4: Simplify right side
    176,255.55x = 24,512,695,559.24
  5. Step 5: Solve for x
    x = 24,512,695,559.24/176,255.55
  6. Step 6: Final answer
    x = 139,074.74

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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.