Home / 176,057.16-242,641.62-128,234.76

Finding the Fourth Proportional to 176,057.16, 242,641.62 and 128,234.76

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Solution

The fourth proportional to 176,057.16, 242,641.62 and 128,234.76 is: 176,732.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,057.16 : 242,641.62 = 128,234.76 : x
  2. Step 2: Convert to fraction form
    176,057.16/242,641.62 = 128,234.76/x
  3. Step 3: Cross multiply
    176,057.16x = 242,641.62 × 128,234.76
  4. Step 4: Simplify right side
    176,057.16x = 31,115,089,906.71
  5. Step 5: Solve for x
    x = 31,115,089,906.71/176,057.16
  6. Step 6: Final answer
    x = 176,732.89

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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.