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Finding the Fourth Proportional to 121,453.61, 167,606.24 and 67,742.07

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Solution

The fourth proportional to 121,453.61, 167,606.24 and 67,742.07 is: 93,484.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,453.61 : 167,606.24 = 67,742.07 : x
  2. Step 2: Convert to fraction form
    121,453.61/167,606.24 = 67,742.07/x
  3. Step 3: Cross multiply
    121,453.61x = 167,606.24 × 67,742.07
  4. Step 4: Simplify right side
    121,453.61x = 11,353,993,303.81
  5. Step 5: Solve for x
    x = 11,353,993,303.81/121,453.61
  6. Step 6: Final answer
    x = 93,484.20

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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.