Home / 121,152.79-167,189.61-66,703.24

Finding the Fourth Proportional to 121,152.79, 167,189.61 and 66,703.24

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Solution

The fourth proportional to 121,152.79, 167,189.61 and 66,703.24 is: 92,049.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,152.79 : 167,189.61 = 66,703.24 : x
  2. Step 2: Convert to fraction form
    121,152.79/167,189.61 = 66,703.24/x
  3. Step 3: Cross multiply
    121,152.79x = 167,189.61 × 66,703.24
  4. Step 4: Simplify right side
    121,152.79x = 11,152,088,681.34
  5. Step 5: Solve for x
    x = 11,152,088,681.34/121,152.79
  6. Step 6: Final answer
    x = 92,049.79

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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.