Home / 148,688.27-205,192.88-84,157.50

Finding the Fourth Proportional to 148,688.27, 205,192.88 and 84,157.50

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Solution

The fourth proportional to 148,688.27, 205,192.88 and 84,157.50 is: 116,139.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,688.27 : 205,192.88 = 84,157.50 : x
  2. Step 2: Convert to fraction form
    148,688.27/205,192.88 = 84,157.50/x
  3. Step 3: Cross multiply
    148,688.27x = 205,192.88 × 84,157.50
  4. Step 4: Simplify right side
    148,688.27x = 17,268,519,798.60
  5. Step 5: Solve for x
    x = 17,268,519,798.60/148,688.27
  6. Step 6: Final answer
    x = 116,139.09

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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.