Home / 239,085.81-329,938.40-131,655.59

Finding the Fourth Proportional to 239,085.81, 329,938.40 and 131,655.59

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Solution

The fourth proportional to 239,085.81, 329,938.40 and 131,655.59 is: 181,684.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,085.81 : 329,938.40 = 131,655.59 : x
  2. Step 2: Convert to fraction form
    239,085.81/329,938.40 = 131,655.59/x
  3. Step 3: Cross multiply
    239,085.81x = 329,938.40 × 131,655.59
  4. Step 4: Simplify right side
    239,085.81x = 43,438,232,407.69
  5. Step 5: Solve for x
    x = 43,438,232,407.69/239,085.81
  6. Step 6: Final answer
    x = 181,684.69

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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.