Home / 121,688.63-182,403.70-71,792.22

Finding the Fourth Proportional to 121,688.63, 182,403.70 and 71,792.22

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Solution

The fourth proportional to 121,688.63, 182,403.70 and 71,792.22 is: 107,612.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,688.63 : 182,403.70 = 71,792.22 : x
  2. Step 2: Convert to fraction form
    121,688.63/182,403.70 = 71,792.22/x
  3. Step 3: Cross multiply
    121,688.63x = 182,403.70 × 71,792.22
  4. Step 4: Simplify right side
    121,688.63x = 13,095,167,063.75
  5. Step 5: Solve for x
    x = 13,095,167,063.75/121,688.63
  6. Step 6: Final answer
    x = 107,612.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.