Home / 102,971.60-142,119.28-60,532.32

Finding the Fourth Proportional to 102,971.60, 142,119.28 and 60,532.32

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Solution

The fourth proportional to 102,971.60, 142,119.28 and 60,532.32 is: 83,545.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,971.60 : 142,119.28 = 60,532.32 : x
  2. Step 2: Convert to fraction form
    102,971.60/142,119.28 = 60,532.32/x
  3. Step 3: Cross multiply
    102,971.60x = 142,119.28 × 60,532.32
  4. Step 4: Simplify right side
    102,971.60x = 8,602,809,735.13
  5. Step 5: Solve for x
    x = 8,602,809,735.13/102,971.60
  6. Step 6: Final answer
    x = 83,545.46

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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.