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Finding the Fourth Proportional to 170,742.80, 256,114.20 and 59,920.40

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Solution

The fourth proportional to 170,742.80, 256,114.20 and 59,920.40 is: 89,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,742.80 : 256,114.20 = 59,920.40 : x
  2. Step 2: Convert to fraction form
    170,742.80/256,114.20 = 59,920.40/x
  3. Step 3: Cross multiply
    170,742.80x = 256,114.20 × 59,920.40
  4. Step 4: Simplify right side
    170,742.80x = 15,346,465,309.68
  5. Step 5: Solve for x
    x = 15,346,465,309.68/170,742.80
  6. Step 6: Final answer
    x = 89,880.60

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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.