Home / 107,430.48-161,132.88-28,550.76

Finding the Fourth Proportional to 107,430.48, 161,132.88 and 28,550.76

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Solution

The fourth proportional to 107,430.48, 161,132.88 and 28,550.76 is: 42,822.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,430.48 : 161,132.88 = 28,550.76 : x
  2. Step 2: Convert to fraction form
    107,430.48/161,132.88 = 28,550.76/x
  3. Step 3: Cross multiply
    107,430.48x = 161,132.88 × 28,550.76
  4. Step 4: Simplify right side
    107,430.48x = 4,600,466,184.99
  5. Step 5: Solve for x
    x = 4,600,466,184.99/107,430.48
  6. Step 6: Final answer
    x = 42,822.73

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1.5x scale

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.