Home / 231,548.24-319,429.32-136,053.20

Finding the Fourth Proportional to 231,548.24, 319,429.32 and 136,053.20

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Solution

The fourth proportional to 231,548.24, 319,429.32 and 136,053.20 is: 187,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,548.24 : 319,429.32 = 136,053.20 : x
  2. Step 2: Convert to fraction form
    231,548.24/319,429.32 = 136,053.20/x
  3. Step 3: Cross multiply
    231,548.24x = 319,429.32 × 136,053.20
  4. Step 4: Simplify right side
    231,548.24x = 43,459,381,159.82
  5. Step 5: Solve for x
    x = 43,459,381,159.82/231,548.24
  6. Step 6: Final answer
    x = 187,690.40

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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.