Home / 120,265.56-180,345.01-64,095.20

Finding the Fourth Proportional to 120,265.56, 180,345.01 and 64,095.20

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Solution

The fourth proportional to 120,265.56, 180,345.01 and 64,095.20 is: 96,114.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,265.56 : 180,345.01 = 64,095.20 : x
  2. Step 2: Convert to fraction form
    120,265.56/180,345.01 = 64,095.20/x
  3. Step 3: Cross multiply
    120,265.56x = 180,345.01 × 64,095.20
  4. Step 4: Simplify right side
    120,265.56x = 11,559,249,484.95
  5. Step 5: Solve for x
    x = 11,559,249,484.95/120,265.56
  6. Step 6: Final answer
    x = 96,114.38

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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.