Home / 121,054.20-167,011.72-75,788.72

Finding the Fourth Proportional to 121,054.20, 167,011.72 and 75,788.72

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Solution

The fourth proportional to 121,054.20, 167,011.72 and 75,788.72 is: 104,561.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,054.20 : 167,011.72 = 75,788.72 : x
  2. Step 2: Convert to fraction form
    121,054.20/167,011.72 = 75,788.72/x
  3. Step 3: Cross multiply
    121,054.20x = 167,011.72 × 75,788.72
  4. Step 4: Simplify right side
    121,054.20x = 12,657,604,483.80
  5. Step 5: Solve for x
    x = 12,657,604,483.80/121,054.20
  6. Step 6: Final answer
    x = 104,561.46

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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.