Home / 187,302.78-258,484.03-102,419.84

Finding the Fourth Proportional to 187,302.78, 258,484.03 and 102,419.84

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Solution

The fourth proportional to 187,302.78, 258,484.03 and 102,419.84 is: 141,342.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,302.78 : 258,484.03 = 102,419.84 : x
  2. Step 2: Convert to fraction form
    187,302.78/258,484.03 = 102,419.84/x
  3. Step 3: Cross multiply
    187,302.78x = 258,484.03 × 102,419.84
  4. Step 4: Simplify right side
    187,302.78x = 26,473,893,385.32
  5. Step 5: Solve for x
    x = 26,473,893,385.32/187,302.78
  6. Step 6: Final answer
    x = 141,342.77

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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.