Home / 127,457.11-191,144.73-42,048.77

Finding the Fourth Proportional to 127,457.11, 191,144.73 and 42,048.77

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Solution

The fourth proportional to 127,457.11, 191,144.73 and 42,048.77 is: 63,059.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,457.11 : 191,144.73 = 42,048.77 : x
  2. Step 2: Convert to fraction form
    127,457.11/191,144.73 = 42,048.77/x
  3. Step 3: Cross multiply
    127,457.11x = 191,144.73 × 42,048.77
  4. Step 4: Simplify right side
    127,457.11x = 8,037,399,832.76
  5. Step 5: Solve for x
    x = 8,037,399,832.76/127,457.11
  6. Step 6: Final answer
    x = 63,059.64

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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.