Home / 121,510.08-167,675.94-76,186.13

Finding the Fourth Proportional to 121,510.08, 167,675.94 and 76,186.13

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Solution

The fourth proportional to 121,510.08, 167,675.94 and 76,186.13 is: 105,131.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,510.08 : 167,675.94 = 76,186.13 : x
  2. Step 2: Convert to fraction form
    121,510.08/167,675.94 = 76,186.13/x
  3. Step 3: Cross multiply
    121,510.08x = 167,675.94 × 76,186.13
  4. Step 4: Simplify right side
    121,510.08x = 12,774,580,124.33
  5. Step 5: Solve for x
    x = 12,774,580,124.33/121,510.08
  6. Step 6: Final answer
    x = 105,131.86

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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.