Home / 156,065.10-233,701.65-85,865.10

Finding the Fourth Proportional to 156,065.10, 233,701.65 and 85,865.10

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Solution

The fourth proportional to 156,065.10, 233,701.65 and 85,865.10 is: 128,579.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,065.10 : 233,701.65 = 85,865.10 : x
  2. Step 2: Convert to fraction form
    156,065.10/233,701.65 = 85,865.10/x
  3. Step 3: Cross multiply
    156,065.10x = 233,701.65 × 85,865.10
  4. Step 4: Simplify right side
    156,065.10x = 20,066,815,547.42
  5. Step 5: Solve for x
    x = 20,066,815,547.42/156,065.10
  6. Step 6: Final answer
    x = 128,579.78

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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.