Home / 238,143.06-328,641.67-130,723.09

Finding the Fourth Proportional to 238,143.06, 328,641.67 and 130,723.09

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Solution

The fourth proportional to 238,143.06, 328,641.67 and 130,723.09 is: 180,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,143.06 : 328,641.67 = 130,723.09 : x
  2. Step 2: Convert to fraction form
    238,143.06/328,641.67 = 130,723.09/x
  3. Step 3: Cross multiply
    238,143.06x = 328,641.67 × 130,723.09
  4. Step 4: Simplify right side
    238,143.06x = 42,961,054,605.16
  5. Step 5: Solve for x
    x = 42,961,054,605.16/238,143.06
  6. Step 6: Final answer
    x = 180,400.20

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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.