Home / 176,255.48-243,206.91-100,789.40

Finding the Fourth Proportional to 176,255.48, 243,206.91 and 100,789.40

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Solution

The fourth proportional to 176,255.48, 243,206.91 and 100,789.40 is: 139,074.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,255.48 : 243,206.91 = 100,789.40 : x
  2. Step 2: Convert to fraction form
    176,255.48/243,206.91 = 100,789.40/x
  3. Step 3: Cross multiply
    176,255.48x = 243,206.91 × 100,789.40
  4. Step 4: Simplify right side
    176,255.48x = 24,512,679,142.77
  5. Step 5: Solve for x
    x = 24,512,679,142.77/176,255.48
  6. Step 6: Final answer
    x = 139,074.70

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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.