Home / 145,123.76-217,601.84-56,273.47

Finding the Fourth Proportional to 145,123.76, 217,601.84 and 56,273.47

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Solution

The fourth proportional to 145,123.76, 217,601.84 and 56,273.47 is: 84,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,123.76 : 217,601.84 = 56,273.47 : x
  2. Step 2: Convert to fraction form
    145,123.76/217,601.84 = 56,273.47/x
  3. Step 3: Cross multiply
    145,123.76x = 217,601.84 × 56,273.47
  4. Step 4: Simplify right side
    145,123.76x = 12,245,209,789.81
  5. Step 5: Solve for x
    x = 12,245,209,789.81/145,123.76
  6. Step 6: Final answer
    x = 84,377.70

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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.