Home / 120,570.48-180,312.44-92,116.08

Finding the Fourth Proportional to 120,570.48, 180,312.44 and 92,116.08

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Solution

The fourth proportional to 120,570.48, 180,312.44 and 92,116.08 is: 137,759.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,570.48 : 180,312.44 = 92,116.08 : x
  2. Step 2: Convert to fraction form
    120,570.48/180,312.44 = 92,116.08/x
  3. Step 3: Cross multiply
    120,570.48x = 180,312.44 × 92,116.08
  4. Step 4: Simplify right side
    120,570.48x = 16,609,675,148.04
  5. Step 5: Solve for x
    x = 16,609,675,148.04/120,570.48
  6. Step 6: Final answer
    x = 137,759.05

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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.