Home / 147,331.64-203,319.08-83,669.88

Finding the Fourth Proportional to 147,331.64, 203,319.08 and 83,669.88

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Solution

The fourth proportional to 147,331.64, 203,319.08 and 83,669.88 is: 115,465.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,331.64 : 203,319.08 = 83,669.88 : x
  2. Step 2: Convert to fraction form
    147,331.64/203,319.08 = 83,669.88/x
  3. Step 3: Cross multiply
    147,331.64x = 203,319.08 × 83,669.88
  4. Step 4: Simplify right side
    147,331.64x = 17,011,683,025.31
  5. Step 5: Solve for x
    x = 17,011,683,025.31/147,331.64
  6. Step 6: Final answer
    x = 115,465.24

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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.