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Finding the Fourth Proportional to 125,036.25, 172,550.16 and 68,447.76

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Solution

The fourth proportional to 125,036.25, 172,550.16 and 68,447.76 is: 94,457.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,036.25 : 172,550.16 = 68,447.76 : x
  2. Step 2: Convert to fraction form
    125,036.25/172,550.16 = 68,447.76/x
  3. Step 3: Cross multiply
    125,036.25x = 172,550.16 × 68,447.76
  4. Step 4: Simplify right side
    125,036.25x = 11,810,671,939.64
  5. Step 5: Solve for x
    x = 11,810,671,939.64/125,036.25
  6. Step 6: Final answer
    x = 94,457.98

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1.5x scale

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.