Home / 145,085.76-200,166.48-91,374.12

Finding the Fourth Proportional to 145,085.76, 200,166.48 and 91,374.12

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Solution

The fourth proportional to 145,085.76, 200,166.48 and 91,374.12 is: 126,063.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,085.76 : 200,166.48 = 91,374.12 : x
  2. Step 2: Convert to fraction form
    145,085.76/200,166.48 = 91,374.12/x
  3. Step 3: Cross multiply
    145,085.76x = 200,166.48 × 91,374.12
  4. Step 4: Simplify right side
    145,085.76x = 18,290,035,963.50
  5. Step 5: Solve for x
    x = 18,290,035,963.50/145,085.76
  6. Step 6: Final answer
    x = 126,063.62

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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.