Home / 147,316.05-203,287.05-86,889.24

Finding the Fourth Proportional to 147,316.05, 203,287.05 and 86,889.24

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Solution

The fourth proportional to 147,316.05, 203,287.05 and 86,889.24 is: 119,901.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,316.05 : 203,287.05 = 86,889.24 : x
  2. Step 2: Convert to fraction form
    147,316.05/203,287.05 = 86,889.24/x
  3. Step 3: Cross multiply
    147,316.05x = 203,287.05 × 86,889.24
  4. Step 4: Simplify right side
    147,316.05x = 17,663,457,276.34
  5. Step 5: Solve for x
    x = 17,663,457,276.34/147,316.05
  6. Step 6: Final answer
    x = 119,901.78

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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.