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Finding the Fourth Proportional to 102,529.70, 153,794.55 and 43,345.70

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Solution

The fourth proportional to 102,529.70, 153,794.55 and 43,345.70 is: 65,018.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,529.70 : 153,794.55 = 43,345.70 : x
  2. Step 2: Convert to fraction form
    102,529.70/153,794.55 = 43,345.70/x
  3. Step 3: Cross multiply
    102,529.70x = 153,794.55 × 43,345.70
  4. Step 4: Simplify right side
    102,529.70x = 6,666,332,425.94
  5. Step 5: Solve for x
    x = 6,666,332,425.94/102,529.70
  6. Step 6: Final answer
    x = 65,018.55

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1.5x scale

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.