Home / 121,216.39-167,267.90-70,212.81

Finding the Fourth Proportional to 121,216.39, 167,267.90 and 70,212.81

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Solution

The fourth proportional to 121,216.39, 167,267.90 and 70,212.81 is: 96,887.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,216.39 : 167,267.90 = 70,212.81 : x
  2. Step 2: Convert to fraction form
    121,216.39/167,267.90 = 70,212.81/x
  3. Step 3: Cross multiply
    121,216.39x = 167,267.90 × 70,212.81
  4. Step 4: Simplify right side
    121,216.39x = 11,744,349,281.80
  5. Step 5: Solve for x
    x = 11,744,349,281.80/121,216.39
  6. Step 6: Final answer
    x = 96,887.47

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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.