Home / 103,241.67-142,501.37-67,430.91

Finding the Fourth Proportional to 103,241.67, 142,501.37 and 67,430.91

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Solution

The fourth proportional to 103,241.67, 142,501.37 and 67,430.91 is: 93,072.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,241.67 : 142,501.37 = 67,430.91 : x
  2. Step 2: Convert to fraction form
    103,241.67/142,501.37 = 67,430.91/x
  3. Step 3: Cross multiply
    103,241.67x = 142,501.37 × 67,430.91
  4. Step 4: Simplify right side
    103,241.67x = 9,608,996,718.19
  5. Step 5: Solve for x
    x = 9,608,996,718.19/103,241.67
  6. Step 6: Final answer
    x = 93,072.85

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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.