Home / 120,572.48-180,315.44-92,118.08

Finding the Fourth Proportional to 120,572.48, 180,315.44 and 92,118.08

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Solution

The fourth proportional to 120,572.48, 180,315.44 and 92,118.08 is: 137,762.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,572.48 : 180,315.44 = 92,118.08 : x
  2. Step 2: Convert to fraction form
    120,572.48/180,315.44 = 92,118.08/x
  3. Step 3: Cross multiply
    120,572.48x = 180,315.44 × 92,118.08
  4. Step 4: Simplify right side
    120,572.48x = 16,610,312,127.16
  5. Step 5: Solve for x
    x = 16,610,312,127.16/120,572.48
  6. Step 6: Final answer
    x = 137,762.05

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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.