Home / 121,421.34-167,533.56-73,001.16

Finding the Fourth Proportional to 121,421.34, 167,533.56 and 73,001.16

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Solution

The fourth proportional to 121,421.34, 167,533.56 and 73,001.16 is: 100,724.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,421.34 : 167,533.56 = 73,001.16 : x
  2. Step 2: Convert to fraction form
    121,421.34/167,533.56 = 73,001.16/x
  3. Step 3: Cross multiply
    121,421.34x = 167,533.56 × 73,001.16
  4. Step 4: Simplify right side
    121,421.34x = 12,230,144,218.93
  5. Step 5: Solve for x
    x = 12,230,144,218.93/121,421.34
  6. Step 6: Final answer
    x = 100,724.83

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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.