Home / 239,111.60-329,899.64-135,728.87

Finding the Fourth Proportional to 239,111.60, 329,899.64 and 135,728.87

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Solution

The fourth proportional to 239,111.60, 329,899.64 and 135,728.87 is: 187,263.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,111.60 : 329,899.64 = 135,728.87 : x
  2. Step 2: Convert to fraction form
    239,111.60/329,899.64 = 135,728.87/x
  3. Step 3: Cross multiply
    239,111.60x = 329,899.64 × 135,728.87
  4. Step 4: Simplify right side
    239,111.60x = 44,776,903,022.46
  5. Step 5: Solve for x
    x = 44,776,903,022.46/239,111.60
  6. Step 6: Final answer
    x = 187,263.62

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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.