Home / 126,988.95-190,316.28-70,855.48

Finding the Fourth Proportional to 126,988.95, 190,316.28 and 70,855.48

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Solution

The fourth proportional to 126,988.95, 190,316.28 and 70,855.48 is: 106,189.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,988.95 : 190,316.28 = 70,855.48 : x
  2. Step 2: Convert to fraction form
    126,988.95/190,316.28 = 70,855.48/x
  3. Step 3: Cross multiply
    126,988.95x = 190,316.28 × 70,855.48
  4. Step 4: Simplify right side
    126,988.95x = 13,484,951,371.21
  5. Step 5: Solve for x
    x = 13,484,951,371.21/126,988.95
  6. Step 6: Final answer
    x = 106,189.96

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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.