Home / 103,010.72-142,142.79-59,999.64

Finding the Fourth Proportional to 103,010.72, 142,142.79 and 59,999.64

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Solution

The fourth proportional to 103,010.72, 142,142.79 and 59,999.64 is: 82,792.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,010.72 : 142,142.79 = 59,999.64 : x
  2. Step 2: Convert to fraction form
    103,010.72/142,142.79 = 59,999.64/x
  3. Step 3: Cross multiply
    103,010.72x = 142,142.79 × 59,999.64
  4. Step 4: Simplify right side
    103,010.72x = 8,528,516,228.60
  5. Step 5: Solve for x
    x = 8,528,516,228.60/103,010.72
  6. Step 6: Final answer
    x = 82,792.52

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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.