Home / 158,490.28-238,031.52-139,521.64

Finding the Fourth Proportional to 158,490.28, 238,031.52 and 139,521.64

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Solution

The fourth proportional to 158,490.28, 238,031.52 and 139,521.64 is: 209,543.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,490.28 : 238,031.52 = 139,521.64 : x
  2. Step 2: Convert to fraction form
    158,490.28/238,031.52 = 139,521.64/x
  3. Step 3: Cross multiply
    158,490.28x = 238,031.52 × 139,521.64
  4. Step 4: Simplify right side
    158,490.28x = 33,210,548,042.09
  5. Step 5: Solve for x
    x = 33,210,548,042.09/158,490.28
  6. Step 6: Final answer
    x = 209,543.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.