Home / 124,921.92-172,408.95-70,485.29

Finding the Fourth Proportional to 124,921.92, 172,408.95 and 70,485.29

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Solution

The fourth proportional to 124,921.92, 172,408.95 and 70,485.29 is: 97,279.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,921.92 : 172,408.95 = 70,485.29 : x
  2. Step 2: Convert to fraction form
    124,921.92/172,408.95 = 70,485.29/x
  3. Step 3: Cross multiply
    124,921.92x = 172,408.95 × 70,485.29
  4. Step 4: Simplify right side
    124,921.92x = 12,152,293,977.30
  5. Step 5: Solve for x
    x = 12,152,293,977.30/124,921.92
  6. Step 6: Final answer
    x = 97,279.12

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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.