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Finding the Fourth Proportional to 187,417.86, 258,635.86 and 101,376.89

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Solution

The fourth proportional to 187,417.86, 258,635.86 and 101,376.89 is: 139,899.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,417.86 : 258,635.86 = 101,376.89 : x
  2. Step 2: Convert to fraction form
    187,417.86/258,635.86 = 101,376.89/x
  3. Step 3: Cross multiply
    187,417.86x = 258,635.86 × 101,376.89
  4. Step 4: Simplify right side
    187,417.86x = 26,219,699,129.28
  5. Step 5: Solve for x
    x = 26,219,699,129.28/187,417.86
  6. Step 6: Final answer
    x = 139,899.68

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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.