Home / 161,437.91-222,780.87-93,457.76

Finding the Fourth Proportional to 161,437.91, 222,780.87 and 93,457.76

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Solution

The fourth proportional to 161,437.91, 222,780.87 and 93,457.76 is: 128,969.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,437.91 : 222,780.87 = 93,457.76 : x
  2. Step 2: Convert to fraction form
    161,437.91/222,780.87 = 93,457.76/x
  3. Step 3: Cross multiply
    161,437.91x = 222,780.87 × 93,457.76
  4. Step 4: Simplify right side
    161,437.91x = 20,820,599,967.15
  5. Step 5: Solve for x
    x = 20,820,599,967.15/161,437.91
  6. Step 6: Final answer
    x = 128,969.71

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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.