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Finding the Fourth Proportional to 145,587.08, 200,910.08 and 81,924.93

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Solution

The fourth proportional to 145,587.08, 200,910.08 and 81,924.93 is: 113,056.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,587.08 : 200,910.08 = 81,924.93 : x
  2. Step 2: Convert to fraction form
    145,587.08/200,910.08 = 81,924.93/x
  3. Step 3: Cross multiply
    145,587.08x = 200,910.08 × 81,924.93
  4. Step 4: Simplify right side
    145,587.08x = 16,459,543,830.67
  5. Step 5: Solve for x
    x = 16,459,543,830.67/145,587.08
  6. Step 6: Final answer
    x = 113,056.35

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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.