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Finding the Fourth Proportional to 105,681.70, 145,841.93 and 60,365.69

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Solution

The fourth proportional to 105,681.70, 145,841.93 and 60,365.69 is: 83,305.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,681.70 : 145,841.93 = 60,365.69 : x
  2. Step 2: Convert to fraction form
    105,681.70/145,841.93 = 60,365.69/x
  3. Step 3: Cross multiply
    105,681.70x = 145,841.93 × 60,365.69
  4. Step 4: Simplify right side
    105,681.70x = 8,803,848,735.38
  5. Step 5: Solve for x
    x = 8,803,848,735.38/105,681.70
  6. Step 6: Final answer
    x = 83,305.33

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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.