Home / 119,125.52-164,395.14-65,415.50

Finding the Fourth Proportional to 119,125.52, 164,395.14 and 65,415.50

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Solution

The fourth proportional to 119,125.52, 164,395.14 and 65,415.50 is: 90,274.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,125.52 : 164,395.14 = 65,415.50 : x
  2. Step 2: Convert to fraction form
    119,125.52/164,395.14 = 65,415.50/x
  3. Step 3: Cross multiply
    119,125.52x = 164,395.14 × 65,415.50
  4. Step 4: Simplify right side
    119,125.52x = 10,753,990,280.67
  5. Step 5: Solve for x
    x = 10,753,990,280.67/119,125.52
  6. Step 6: Final answer
    x = 90,274.45

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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.