Home / 135,363.40-186,798.76-74,934

Finding the Fourth Proportional to 135,363.40, 186,798.76 and 74,934

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Solution

The fourth proportional to 135,363.40, 186,798.76 and 74,934 is: 103,407.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,363.40 : 186,798.76 = 74,934 : x
  2. Step 2: Convert to fraction form
    135,363.40/186,798.76 = 74,934/x
  3. Step 3: Cross multiply
    135,363.40x = 186,798.76 × 74,934
  4. Step 4: Simplify right side
    135,363.40x = 13,997,578,281.84
  5. Step 5: Solve for x
    x = 13,997,578,281.84/135,363.40
  6. Step 6: Final answer
    x = 103,407.41

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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.