Home / 129,259.67-178,374.08-71,897.37

Finding the Fourth Proportional to 129,259.67, 178,374.08 and 71,897.37

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Solution

The fourth proportional to 129,259.67, 178,374.08 and 71,897.37 is: 99,216.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,259.67 : 178,374.08 = 71,897.37 : x
  2. Step 2: Convert to fraction form
    129,259.67/178,374.08 = 71,897.37/x
  3. Step 3: Cross multiply
    129,259.67x = 178,374.08 × 71,897.37
  4. Step 4: Simplify right side
    129,259.67x = 12,824,626,868.68
  5. Step 5: Solve for x
    x = 12,824,626,868.68/129,259.67
  6. Step 6: Final answer
    x = 99,216.00

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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.