Home / 125,965.12-173,904.16-83,581.12

Finding the Fourth Proportional to 125,965.12, 173,904.16 and 83,581.12

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Solution

The fourth proportional to 125,965.12, 173,904.16 and 83,581.12 is: 115,389.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,965.12 : 173,904.16 = 83,581.12 : x
  2. Step 2: Convert to fraction form
    125,965.12/173,904.16 = 83,581.12/x
  3. Step 3: Cross multiply
    125,965.12x = 173,904.16 × 83,581.12
  4. Step 4: Simplify right side
    125,965.12x = 14,535,104,465.46
  5. Step 5: Solve for x
    x = 14,535,104,465.46/125,965.12
  6. Step 6: Final answer
    x = 115,389.91

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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.