Home / 147,283.18-203,245.47-90,018.34

Finding the Fourth Proportional to 147,283.18, 203,245.47 and 90,018.34

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Solution

The fourth proportional to 147,283.18, 203,245.47 and 90,018.34 is: 124,222.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,283.18 : 203,245.47 = 90,018.34 : x
  2. Step 2: Convert to fraction form
    147,283.18/203,245.47 = 90,018.34/x
  3. Step 3: Cross multiply
    147,283.18x = 203,245.47 × 90,018.34
  4. Step 4: Simplify right side
    147,283.18x = 18,295,819,313.81
  5. Step 5: Solve for x
    x = 18,295,819,313.81/147,283.18
  6. Step 6: Final answer
    x = 124,222.06

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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.