Home / 145,123.84-217,644.54-56,358.40

Finding the Fourth Proportional to 145,123.84, 217,644.54 and 56,358.40

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Solution

The fourth proportional to 145,123.84, 217,644.54 and 56,358.40 is: 84,521.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,123.84 : 217,644.54 = 56,358.40 : x
  2. Step 2: Convert to fraction form
    145,123.84/217,644.54 = 56,358.40/x
  3. Step 3: Cross multiply
    145,123.84x = 217,644.54 × 56,358.40
  4. Step 4: Simplify right side
    145,123.84x = 12,266,098,043.14
  5. Step 5: Solve for x
    x = 12,266,098,043.14/145,123.84
  6. Step 6: Final answer
    x = 84,521.59

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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.