Home / 121,527.63-167,663.57-76,207.52

Finding the Fourth Proportional to 121,527.63, 167,663.57 and 76,207.52

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Solution

The fourth proportional to 121,527.63, 167,663.57 and 76,207.52 is: 105,138.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,527.63 : 167,663.57 = 76,207.52 : x
  2. Step 2: Convert to fraction form
    121,527.63/167,663.57 = 76,207.52/x
  3. Step 3: Cross multiply
    121,527.63x = 167,663.57 × 76,207.52
  4. Step 4: Simplify right side
    121,527.63x = 12,777,223,644.69
  5. Step 5: Solve for x
    x = 12,777,223,644.69/121,527.63
  6. Step 6: Final answer
    x = 105,138.43

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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.