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Finding the Fourth Proportional to 163,692.50, 245,541.78 and 51,370.20

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Solution

The fourth proportional to 163,692.50, 245,541.78 and 51,370.20 is: 77,056.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,692.50 : 245,541.78 = 51,370.20 : x
  2. Step 2: Convert to fraction form
    163,692.50/245,541.78 = 51,370.20/x
  3. Step 3: Cross multiply
    163,692.50x = 245,541.78 × 51,370.20
  4. Step 4: Simplify right side
    163,692.50x = 12,613,530,346.96
  5. Step 5: Solve for x
    x = 12,613,530,346.96/163,692.50
  6. Step 6: Final answer
    x = 77,056.25

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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.