Home / 86,907.05-130,166.18-71,355.05

Finding the Fourth Proportional to 86,907.05, 130,166.18 and 71,355.05

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Solution

The fourth proportional to 86,907.05, 130,166.18 and 71,355.05 is: 106,872.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,907.05 : 130,166.18 = 71,355.05 : x
  2. Step 2: Convert to fraction form
    86,907.05/130,166.18 = 71,355.05/x
  3. Step 3: Cross multiply
    86,907.05x = 130,166.18 × 71,355.05
  4. Step 4: Simplify right side
    86,907.05x = 9,288,013,925.43
  5. Step 5: Solve for x
    x = 9,288,013,925.43/86,907.05
  6. Step 6: Final answer
    x = 106,872.96

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1.5x scale

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.