Home / 127,984.86-176,605.11-90,193.50

Finding the Fourth Proportional to 127,984.86, 176,605.11 and 90,193.50

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Solution

The fourth proportional to 127,984.86, 176,605.11 and 90,193.50 is: 124,457.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,984.86 : 176,605.11 = 90,193.50 : x
  2. Step 2: Convert to fraction form
    127,984.86/176,605.11 = 90,193.50/x
  3. Step 3: Cross multiply
    127,984.86x = 176,605.11 × 90,193.50
  4. Step 4: Simplify right side
    127,984.86x = 15,928,632,988.79
  5. Step 5: Solve for x
    x = 15,928,632,988.79/127,984.86
  6. Step 6: Final answer
    x = 124,457.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.