Home / 121,903.24-168,330.30-76,656.94

Finding the Fourth Proportional to 121,903.24, 168,330.30 and 76,656.94

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Solution

The fourth proportional to 121,903.24, 168,330.30 and 76,656.94 is: 105,851.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,903.24 : 168,330.30 = 76,656.94 : x
  2. Step 2: Convert to fraction form
    121,903.24/168,330.30 = 76,656.94/x
  3. Step 3: Cross multiply
    121,903.24x = 168,330.30 × 76,656.94
  4. Step 4: Simplify right side
    121,903.24x = 12,903,685,707.28
  5. Step 5: Solve for x
    x = 12,903,685,707.28/121,903.24
  6. Step 6: Final answer
    x = 105,851.87

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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.