Home / 157,980.12-218,016.72-94,354.60

Finding the Fourth Proportional to 157,980.12, 218,016.72 and 94,354.60

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Solution

The fourth proportional to 157,980.12, 218,016.72 and 94,354.60 is: 130,211.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,980.12 : 218,016.72 = 94,354.60 : x
  2. Step 2: Convert to fraction form
    157,980.12/218,016.72 = 94,354.60/x
  3. Step 3: Cross multiply
    157,980.12x = 218,016.72 × 94,354.60
  4. Step 4: Simplify right side
    157,980.12x = 20,570,880,408.91
  5. Step 5: Solve for x
    x = 20,570,880,408.91/157,980.12
  6. Step 6: Final answer
    x = 130,211.83

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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.