Home / 120,277.86-180,417.54-31,530.58

Finding the Fourth Proportional to 120,277.86, 180,417.54 and 31,530.58

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Solution

The fourth proportional to 120,277.86, 180,417.54 and 31,530.58 is: 47,296.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,277.86 : 180,417.54 = 31,530.58 : x
  2. Step 2: Convert to fraction form
    120,277.86/180,417.54 = 31,530.58/x
  3. Step 3: Cross multiply
    120,277.86x = 180,417.54 × 31,530.58
  4. Step 4: Simplify right side
    120,277.86x = 5,688,669,345.57
  5. Step 5: Solve for x
    x = 5,688,669,345.57/120,277.86
  6. Step 6: Final answer
    x = 47,296.07

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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.