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Finding the Fourth Proportional to 158,492.70, 237,950.21 and 91,980.57

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Solution

The fourth proportional to 158,492.70, 237,950.21 and 91,980.57 is: 138,093.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,492.70 : 237,950.21 = 91,980.57 : x
  2. Step 2: Convert to fraction form
    158,492.70/237,950.21 = 91,980.57/x
  3. Step 3: Cross multiply
    158,492.70x = 237,950.21 × 91,980.57
  4. Step 4: Simplify right side
    158,492.70x = 21,886,795,487.52
  5. Step 5: Solve for x
    x = 21,886,795,487.52/158,492.70
  6. Step 6: Final answer
    x = 138,093.40

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1.5x scale

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.