Home / 156,740.80-216,301.62-85,120.24

Finding the Fourth Proportional to 156,740.80, 216,301.62 and 85,120.24

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Solution

The fourth proportional to 156,740.80, 216,301.62 and 85,120.24 is: 117,465.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,740.80 : 216,301.62 = 85,120.24 : x
  2. Step 2: Convert to fraction form
    156,740.80/216,301.62 = 85,120.24/x
  3. Step 3: Cross multiply
    156,740.80x = 216,301.62 × 85,120.24
  4. Step 4: Simplify right side
    156,740.80x = 18,411,645,806.79
  5. Step 5: Solve for x
    x = 18,411,645,806.79/156,740.80
  6. Step 6: Final answer
    x = 117,465.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.