Home / 113,848.88-157,120.44-66,117.20

Finding the Fourth Proportional to 113,848.88, 157,120.44 and 66,117.20

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Solution

The fourth proportional to 113,848.88, 157,120.44 and 66,117.20 is: 91,246.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,848.88 : 157,120.44 = 66,117.20 : x
  2. Step 2: Convert to fraction form
    113,848.88/157,120.44 = 66,117.20/x
  3. Step 3: Cross multiply
    113,848.88x = 157,120.44 × 66,117.20
  4. Step 4: Simplify right side
    113,848.88x = 10,388,363,555.57
  5. Step 5: Solve for x
    x = 10,388,363,555.57/113,848.88
  6. Step 6: Final answer
    x = 91,246.95

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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.