Home / 99,911.48-149,875.86-40,751.24

Finding the Fourth Proportional to 99,911.48, 149,875.86 and 40,751.24

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Solution

The fourth proportional to 99,911.48, 149,875.86 and 40,751.24 is: 61,130.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,911.48 : 149,875.86 = 40,751.24 : x
  2. Step 2: Convert to fraction form
    99,911.48/149,875.86 = 40,751.24/x
  3. Step 3: Cross multiply
    99,911.48x = 149,875.86 × 40,751.24
  4. Step 4: Simplify right side
    99,911.48x = 6,107,627,141.07
  5. Step 5: Solve for x
    x = 6,107,627,141.07/99,911.48
  6. Step 6: Final answer
    x = 61,130.38

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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.