Home / 163,618.68-245,433.38-45,280.11

Finding the Fourth Proportional to 163,618.68, 245,433.38 and 45,280.11

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Solution

The fourth proportional to 163,618.68, 245,433.38 and 45,280.11 is: 67,921.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,618.68 : 245,433.38 = 45,280.11 : x
  2. Step 2: Convert to fraction form
    163,618.68/245,433.38 = 45,280.11/x
  3. Step 3: Cross multiply
    163,618.68x = 245,433.38 × 45,280.11
  4. Step 4: Simplify right side
    163,618.68x = 11,113,248,990.50
  5. Step 5: Solve for x
    x = 11,113,248,990.50/163,618.68
  6. Step 6: Final answer
    x = 67,921.64

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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.