Home / 122,975.10-169,717.77-71,984.76

Finding the Fourth Proportional to 122,975.10, 169,717.77 and 71,984.76

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Solution

The fourth proportional to 122,975.10, 169,717.77 and 71,984.76 is: 99,346.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,975.10 : 169,717.77 = 71,984.76 : x
  2. Step 2: Convert to fraction form
    122,975.10/169,717.77 = 71,984.76/x
  3. Step 3: Cross multiply
    122,975.10x = 169,717.77 × 71,984.76
  4. Step 4: Simplify right side
    122,975.10x = 12,217,092,941.19
  5. Step 5: Solve for x
    x = 12,217,092,941.19/122,975.10
  6. Step 6: Final answer
    x = 99,346.07

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1.5x scale

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.