Home / 127,319.80-190,719.68-60,558

Finding the Fourth Proportional to 127,319.80, 190,719.68 and 60,558

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Solution

The fourth proportional to 127,319.80, 190,719.68 and 60,558 is: 90,713.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,319.80 : 190,719.68 = 60,558 : x
  2. Step 2: Convert to fraction form
    127,319.80/190,719.68 = 60,558/x
  3. Step 3: Cross multiply
    127,319.80x = 190,719.68 × 60,558
  4. Step 4: Simplify right side
    127,319.80x = 11,549,602,381.44
  5. Step 5: Solve for x
    x = 11,549,602,381.44/127,319.80
  6. Step 6: Final answer
    x = 90,713.32

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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.