Home / 163,530.20-245,303.40-84,798.20

Finding the Fourth Proportional to 163,530.20, 245,303.40 and 84,798.20

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Solution

The fourth proportional to 163,530.20, 245,303.40 and 84,798.20 is: 127,201.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,530.20 : 245,303.40 = 84,798.20 : x
  2. Step 2: Convert to fraction form
    163,530.20/245,303.40 = 84,798.20/x
  3. Step 3: Cross multiply
    163,530.20x = 245,303.40 × 84,798.20
  4. Step 4: Simplify right side
    163,530.20x = 20,801,286,773.88
  5. Step 5: Solve for x
    x = 20,801,286,773.88/163,530.20
  6. Step 6: Final answer
    x = 127,201.50

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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.