Home / 109,935.36-164,875.20-42,453.76

Finding the Fourth Proportional to 109,935.36, 164,875.20 and 42,453.76

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Solution

The fourth proportional to 109,935.36, 164,875.20 and 42,453.76 is: 63,669.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,935.36 : 164,875.20 = 42,453.76 : x
  2. Step 2: Convert to fraction form
    109,935.36/164,875.20 = 42,453.76/x
  3. Step 3: Cross multiply
    109,935.36x = 164,875.20 × 42,453.76
  4. Step 4: Simplify right side
    109,935.36x = 6,999,572,170.75
  5. Step 5: Solve for x
    x = 6,999,572,170.75/109,935.36
  6. Step 6: Final answer
    x = 63,669.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.