Home / 163,618.20-245,427.30-84,886.20

Finding the Fourth Proportional to 163,618.20, 245,427.30 and 84,886.20

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Solution

The fourth proportional to 163,618.20, 245,427.30 and 84,886.20 is: 127,329.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,618.20 : 245,427.30 = 84,886.20 : x
  2. Step 2: Convert to fraction form
    163,618.20/245,427.30 = 84,886.20/x
  3. Step 3: Cross multiply
    163,618.20x = 245,427.30 × 84,886.20
  4. Step 4: Simplify right side
    163,618.20x = 20,833,390,873.26
  5. Step 5: Solve for x
    x = 20,833,390,873.26/163,618.20
  6. Step 6: Final answer
    x = 127,329.30

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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.