Home / 113,878.60-157,140.54-66,122.62

Finding the Fourth Proportional to 113,878.60, 157,140.54 and 66,122.62

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Solution

The fourth proportional to 113,878.60, 157,140.54 and 66,122.62 is: 91,242.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,878.60 : 157,140.54 = 66,122.62 : x
  2. Step 2: Convert to fraction form
    113,878.60/157,140.54 = 66,122.62/x
  3. Step 3: Cross multiply
    113,878.60x = 157,140.54 × 66,122.62
  4. Step 4: Simplify right side
    113,878.60x = 10,390,544,213.01
  5. Step 5: Solve for x
    x = 10,390,544,213.01/113,878.60
  6. Step 6: Final answer
    x = 91,242.29

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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.