Home / 115,926.54-159,969.54-64,935.30

Finding the Fourth Proportional to 115,926.54, 159,969.54 and 64,935.30

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Solution

The fourth proportional to 115,926.54, 159,969.54 and 64,935.30 is: 89,605.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,926.54 : 159,969.54 = 64,935.30 : x
  2. Step 2: Convert to fraction form
    115,926.54/159,969.54 = 64,935.30/x
  3. Step 3: Cross multiply
    115,926.54x = 159,969.54 × 64,935.30
  4. Step 4: Simplify right side
    115,926.54x = 10,387,670,070.76
  5. Step 5: Solve for x
    x = 10,387,670,070.76/115,926.54
  6. Step 6: Final answer
    x = 89,605.62

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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.