Home / 99,890.37-149,835.02-40,725.81

Finding the Fourth Proportional to 99,890.37, 149,835.02 and 40,725.81

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Solution

The fourth proportional to 99,890.37, 149,835.02 and 40,725.81 is: 61,088.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,890.37 : 149,835.02 = 40,725.81 : x
  2. Step 2: Convert to fraction form
    99,890.37/149,835.02 = 40,725.81/x
  3. Step 3: Cross multiply
    99,890.37x = 149,835.02 × 40,725.81
  4. Step 4: Simplify right side
    99,890.37x = 6,102,152,352.24
  5. Step 5: Solve for x
    x = 6,102,152,352.24/99,890.37
  6. Step 6: Final answer
    x = 61,088.49

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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.