Home / 102,503.64-141,455.25-57,180.51

Finding the Fourth Proportional to 102,503.64, 141,455.25 and 57,180.51

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Solution

The fourth proportional to 102,503.64, 141,455.25 and 57,180.51 is: 78,909.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,503.64 : 141,455.25 = 57,180.51 : x
  2. Step 2: Convert to fraction form
    102,503.64/141,455.25 = 57,180.51/x
  3. Step 3: Cross multiply
    102,503.64x = 141,455.25 × 57,180.51
  4. Step 4: Simplify right side
    102,503.64x = 8,088,483,337.18
  5. Step 5: Solve for x
    x = 8,088,483,337.18/102,503.64
  6. Step 6: Final answer
    x = 78,909.23

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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.