Home / 260,113.20-390,011.40-102,152.40

Finding the Fourth Proportional to 260,113.20, 390,011.40 and 102,152.40

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Solution

The fourth proportional to 260,113.20, 390,011.40 and 102,152.40 is: 153,166.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,113.20 : 390,011.40 = 102,152.40 : x
  2. Step 2: Convert to fraction form
    260,113.20/390,011.40 = 102,152.40/x
  3. Step 3: Cross multiply
    260,113.20x = 390,011.40 × 102,152.40
  4. Step 4: Simplify right side
    260,113.20x = 39,840,600,537.36
  5. Step 5: Solve for x
    x = 39,840,600,537.36/260,113.20
  6. Step 6: Final answer
    x = 153,166.39

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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.