Home / 113,001.38-155,938.40-62,012.80

Finding the Fourth Proportional to 113,001.38, 155,938.40 and 62,012.80

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Solution

The fourth proportional to 113,001.38, 155,938.40 and 62,012.80 is: 85,575.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,001.38 : 155,938.40 = 62,012.80 : x
  2. Step 2: Convert to fraction form
    113,001.38/155,938.40 = 62,012.80/x
  3. Step 3: Cross multiply
    113,001.38x = 155,938.40 × 62,012.80
  4. Step 4: Simplify right side
    113,001.38x = 9,670,177,189.81
  5. Step 5: Solve for x
    x = 9,670,177,189.81/113,001.38
  6. Step 6: Final answer
    x = 85,575.74

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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.