Home / 145,156.46-217,678.71-56,398.28

Finding the Fourth Proportional to 145,156.46, 217,678.71 and 56,398.28

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Solution

The fourth proportional to 145,156.46, 217,678.71 and 56,398.28 is: 84,575.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,156.46 : 217,678.71 = 56,398.28 : x
  2. Step 2: Convert to fraction form
    145,156.46/217,678.71 = 56,398.28/x
  3. Step 3: Cross multiply
    145,156.46x = 217,678.71 × 56,398.28
  4. Step 4: Simplify right side
    145,156.46x = 12,276,704,836.62
  5. Step 5: Solve for x
    x = 12,276,704,836.62/145,156.46
  6. Step 6: Final answer
    x = 84,575.67

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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.