Home / 91,312.11-126,171.68-70,273.17

Finding the Fourth Proportional to 91,312.11, 126,171.68 and 70,273.17

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Solution

The fourth proportional to 91,312.11, 126,171.68 and 70,273.17 is: 97,100.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,312.11 : 126,171.68 = 70,273.17 : x
  2. Step 2: Convert to fraction form
    91,312.11/126,171.68 = 70,273.17/x
  3. Step 3: Cross multiply
    91,312.11x = 126,171.68 × 70,273.17
  4. Step 4: Simplify right side
    91,312.11x = 8,866,483,566.46
  5. Step 5: Solve for x
    x = 8,866,483,566.46/91,312.11
  6. Step 6: Final answer
    x = 97,100.85

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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.