Home / 126,543.84-190,160.64-67,421.76

Finding the Fourth Proportional to 126,543.84, 190,160.64 and 67,421.76

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Solution

The fourth proportional to 126,543.84, 190,160.64 and 67,421.76 is: 101,316.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,543.84 : 190,160.64 = 67,421.76 : x
  2. Step 2: Convert to fraction form
    126,543.84/190,160.64 = 67,421.76/x
  3. Step 3: Cross multiply
    126,543.84x = 190,160.64 × 67,421.76
  4. Step 4: Simplify right side
    126,543.84x = 12,820,965,031.53
  5. Step 5: Solve for x
    x = 12,820,965,031.53/126,543.84
  6. Step 6: Final answer
    x = 101,316.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.