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Finding the Fourth Proportional to 124,321.60, 186,482.40 and 45,492.40

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Solution

The fourth proportional to 124,321.60, 186,482.40 and 45,492.40 is: 68,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,321.60 : 186,482.40 = 45,492.40 : x
  2. Step 2: Convert to fraction form
    124,321.60/186,482.40 = 45,492.40/x
  3. Step 3: Cross multiply
    124,321.60x = 186,482.40 × 45,492.40
  4. Step 4: Simplify right side
    124,321.60x = 8,483,531,933.76
  5. Step 5: Solve for x
    x = 8,483,531,933.76/124,321.60
  6. Step 6: Final answer
    x = 68,238.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.