Home / 156,055.10-233,686.65-85,855.10

Finding the Fourth Proportional to 156,055.10, 233,686.65 and 85,855.10

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Solution

The fourth proportional to 156,055.10, 233,686.65 and 85,855.10 is: 128,564.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,055.10 : 233,686.65 = 85,855.10 : x
  2. Step 2: Convert to fraction form
    156,055.10/233,686.65 = 85,855.10/x
  3. Step 3: Cross multiply
    156,055.10x = 233,686.65 × 85,855.10
  4. Step 4: Simplify right side
    156,055.10x = 20,063,190,704.42
  5. Step 5: Solve for x
    x = 20,063,190,704.42/156,055.10
  6. Step 6: Final answer
    x = 128,564.79

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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.