Home / 154,043.10-212,565.87-86,050.89

Finding the Fourth Proportional to 154,043.10, 212,565.87 and 86,050.89

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Solution

The fourth proportional to 154,043.10, 212,565.87 and 86,050.89 is: 118,742.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,043.10 : 212,565.87 = 86,050.89 : x
  2. Step 2: Convert to fraction form
    154,043.10/212,565.87 = 86,050.89/x
  3. Step 3: Cross multiply
    154,043.10x = 212,565.87 × 86,050.89
  4. Step 4: Simplify right side
    154,043.10x = 18,291,482,297.12
  5. Step 5: Solve for x
    x = 18,291,482,297.12/154,043.10
  6. Step 6: Final answer
    x = 118,742.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.