Home / 120,448.19-180,688.87-40,492.36

Finding the Fourth Proportional to 120,448.19, 180,688.87 and 40,492.36

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Solution

The fourth proportional to 120,448.19, 180,688.87 and 40,492.36 is: 60,744.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,448.19 : 180,688.87 = 40,492.36 : x
  2. Step 2: Convert to fraction form
    120,448.19/180,688.87 = 40,492.36/x
  3. Step 3: Cross multiply
    120,448.19x = 180,688.87 × 40,492.36
  4. Step 4: Simplify right side
    120,448.19x = 7,316,518,772.03
  5. Step 5: Solve for x
    x = 7,316,518,772.03/120,448.19
  6. Step 6: Final answer
    x = 60,744.12

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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.