Home / 172,332.36-258,498.63-78,772.50

Finding the Fourth Proportional to 172,332.36, 258,498.63 and 78,772.50

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Solution

The fourth proportional to 172,332.36, 258,498.63 and 78,772.50 is: 118,158.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,332.36 : 258,498.63 = 78,772.50 : x
  2. Step 2: Convert to fraction form
    172,332.36/258,498.63 = 78,772.50/x
  3. Step 3: Cross multiply
    172,332.36x = 258,498.63 × 78,772.50
  4. Step 4: Simplify right side
    172,332.36x = 20,362,583,331.68
  5. Step 5: Solve for x
    x = 20,362,583,331.68/172,332.36
  6. Step 6: Final answer
    x = 118,158.79

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1.5x scale

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.