Home / 187,897.48-259,298.46-103,012.72

Finding the Fourth Proportional to 187,897.48, 259,298.46 and 103,012.72

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Solution

The fourth proportional to 187,897.48, 259,298.46 and 103,012.72 is: 142,157.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,897.48 : 259,298.46 = 103,012.72 : x
  2. Step 2: Convert to fraction form
    187,897.48/259,298.46 = 103,012.72/x
  3. Step 3: Cross multiply
    187,897.48x = 259,298.46 × 103,012.72
  4. Step 4: Simplify right side
    187,897.48x = 26,711,039,656.41
  5. Step 5: Solve for x
    x = 26,711,039,656.41/187,897.48
  6. Step 6: Final answer
    x = 142,157.52

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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.