Home / 113,848.38-157,119.75-66,116.70

Finding the Fourth Proportional to 113,848.38, 157,119.75 and 66,116.70

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Solution

The fourth proportional to 113,848.38, 157,119.75 and 66,116.70 is: 91,246.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,848.38 : 157,119.75 = 66,116.70 : x
  2. Step 2: Convert to fraction form
    113,848.38/157,119.75 = 66,116.70/x
  3. Step 3: Cross multiply
    113,848.38x = 157,119.75 × 66,116.70
  4. Step 4: Simplify right side
    113,848.38x = 10,388,239,374.83
  5. Step 5: Solve for x
    x = 10,388,239,374.83/113,848.38
  6. Step 6: Final answer
    x = 91,246.26

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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.