Home / 124,495.13-171,735.86-102,856.91

Finding the Fourth Proportional to 124,495.13, 171,735.86 and 102,856.91

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Solution

The fourth proportional to 124,495.13, 171,735.86 and 102,856.91 is: 141,886.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,495.13 : 171,735.86 = 102,856.91 : x
  2. Step 2: Convert to fraction form
    124,495.13/171,735.86 = 102,856.91/x
  3. Step 3: Cross multiply
    124,495.13x = 171,735.86 × 102,856.91
  4. Step 4: Simplify right side
    124,495.13x = 17,664,219,294.26
  5. Step 5: Solve for x
    x = 17,664,219,294.26/124,495.13
  6. Step 6: Final answer
    x = 141,886.83

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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.