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Finding the Fourth Proportional to 146,152.71, 218,595.78 and 86,037.93

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Solution

The fourth proportional to 146,152.71, 218,595.78 and 86,037.93 is: 128,684.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,152.71 : 218,595.78 = 86,037.93 : x
  2. Step 2: Convert to fraction form
    146,152.71/218,595.78 = 86,037.93/x
  3. Step 3: Cross multiply
    146,152.71x = 218,595.78 × 86,037.93
  4. Step 4: Simplify right side
    146,152.71x = 18,807,528,417.94
  5. Step 5: Solve for x
    x = 18,807,528,417.94/146,152.71
  6. Step 6: Final answer
    x = 128,684.09

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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.