Home / 122,316.48-168,791.04-72,005.76

Finding the Fourth Proportional to 122,316.48, 168,791.04 and 72,005.76

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Solution

The fourth proportional to 122,316.48, 168,791.04 and 72,005.76 is: 99,364.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,316.48 : 168,791.04 = 72,005.76 : x
  2. Step 2: Convert to fraction form
    122,316.48/168,791.04 = 72,005.76/x
  3. Step 3: Cross multiply
    122,316.48x = 168,791.04 × 72,005.76
  4. Step 4: Simplify right side
    122,316.48x = 12,153,927,116.39
  5. Step 5: Solve for x
    x = 12,153,927,116.39/122,316.48
  6. Step 6: Final answer
    x = 99,364.59

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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.