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Finding the Fourth Proportional to 126,547, 174,619.70 and 69,950.68

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Solution

The fourth proportional to 126,547, 174,619.70 and 69,950.68 is: 96,523.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,547 : 174,619.70 = 69,950.68 : x
  2. Step 2: Convert to fraction form
    126,547/174,619.70 = 69,950.68/x
  3. Step 3: Cross multiply
    126,547x = 174,619.70 × 69,950.68
  4. Step 4: Simplify right side
    126,547x = 12,214,766,756.40
  5. Step 5: Solve for x
    x = 12,214,766,756.40/126,547
  6. Step 6: Final answer
    x = 96,523.56

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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.