Home / 154,060.40-212,582.21-86,068.94

Finding the Fourth Proportional to 154,060.40, 212,582.21 and 86,068.94

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Solution

The fourth proportional to 154,060.40, 212,582.21 and 86,068.94 is: 118,763.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,060.40 : 212,582.21 = 86,068.94 : x
  2. Step 2: Convert to fraction form
    154,060.40/212,582.21 = 86,068.94/x
  3. Step 3: Cross multiply
    154,060.40x = 212,582.21 × 86,068.94
  4. Step 4: Simplify right side
    154,060.40x = 18,296,723,984.30
  5. Step 5: Solve for x
    x = 18,296,723,984.30/154,060.40
  6. Step 6: Final answer
    x = 118,763.32

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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.