Home / 145,162.13-217,743.19-39,981.09

Finding the Fourth Proportional to 145,162.13, 217,743.19 and 39,981.09

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Solution

The fourth proportional to 145,162.13, 217,743.19 and 39,981.09 is: 59,971.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,162.13 : 217,743.19 = 39,981.09 : x
  2. Step 2: Convert to fraction form
    145,162.13/217,743.19 = 39,981.09/x
  3. Step 3: Cross multiply
    145,162.13x = 217,743.19 × 39,981.09
  4. Step 4: Simplify right side
    145,162.13x = 8,705,610,792.86
  5. Step 5: Solve for x
    x = 8,705,610,792.86/145,162.13
  6. Step 6: Final answer
    x = 59,971.64

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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.