Home / 260,106.19-390,159.28-73,117.69

Finding the Fourth Proportional to 260,106.19, 390,159.28 and 73,117.69

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Solution

The fourth proportional to 260,106.19, 390,159.28 and 73,117.69 is: 109,676.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,106.19 : 390,159.28 = 73,117.69 : x
  2. Step 2: Convert to fraction form
    260,106.19/390,159.28 = 73,117.69/x
  3. Step 3: Cross multiply
    260,106.19x = 390,159.28 × 73,117.69
  4. Step 4: Simplify right side
    260,106.19x = 28,527,544,401.66
  5. Step 5: Solve for x
    x = 28,527,544,401.66/260,106.19
  6. Step 6: Final answer
    x = 109,676.53

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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.