Home / 121,322.50-167,405.35-70,325.28

Finding the Fourth Proportional to 121,322.50, 167,405.35 and 70,325.28

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Solution

The fourth proportional to 121,322.50, 167,405.35 and 70,325.28 is: 97,037.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,322.50 : 167,405.35 = 70,325.28 : x
  2. Step 2: Convert to fraction form
    121,322.50/167,405.35 = 70,325.28/x
  3. Step 3: Cross multiply
    121,322.50x = 167,405.35 × 70,325.28
  4. Step 4: Simplify right side
    121,322.50x = 11,772,828,112.25
  5. Step 5: Solve for x
    x = 11,772,828,112.25/121,322.50
  6. Step 6: Final answer
    x = 97,037.47

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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.