Home / 120,384.23-166,125.63-65,935.52

Finding the Fourth Proportional to 120,384.23, 166,125.63 and 65,935.52

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Solution

The fourth proportional to 120,384.23, 166,125.63 and 65,935.52 is: 90,988.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,384.23 : 166,125.63 = 65,935.52 : x
  2. Step 2: Convert to fraction form
    120,384.23/166,125.63 = 65,935.52/x
  3. Step 3: Cross multiply
    120,384.23x = 166,125.63 × 65,935.52
  4. Step 4: Simplify right side
    120,384.23x = 10,953,579,838.98
  5. Step 5: Solve for x
    x = 10,953,579,838.98/120,384.23
  6. Step 6: Final answer
    x = 90,988.50

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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.