Home / 102,830.32-154,245.18-36,254.40

Finding the Fourth Proportional to 102,830.32, 154,245.18 and 36,254.40

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Solution

The fourth proportional to 102,830.32, 154,245.18 and 36,254.40 is: 54,381.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,830.32 : 154,245.18 = 36,254.40 : x
  2. Step 2: Convert to fraction form
    102,830.32/154,245.18 = 36,254.40/x
  3. Step 3: Cross multiply
    102,830.32x = 154,245.18 × 36,254.40
  4. Step 4: Simplify right side
    102,830.32x = 5,592,065,807.40
  5. Step 5: Solve for x
    x = 5,592,065,807.40/102,830.32
  6. Step 6: Final answer
    x = 54,381.49

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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.