Home / 131,758.23-181,826.47-71,329.40

Finding the Fourth Proportional to 131,758.23, 181,826.47 and 71,329.40

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Solution

The fourth proportional to 131,758.23, 181,826.47 and 71,329.40 is: 98,434.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,758.23 : 181,826.47 = 71,329.40 : x
  2. Step 2: Convert to fraction form
    131,758.23/181,826.47 = 71,329.40/x
  3. Step 3: Cross multiply
    131,758.23x = 181,826.47 × 71,329.40
  4. Step 4: Simplify right side
    131,758.23x = 12,969,573,009.22
  5. Step 5: Solve for x
    x = 12,969,573,009.22/131,758.23
  6. Step 6: Final answer
    x = 98,434.63

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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.