Home / 145,181.21-218,624.54-126,681.93

Finding the Fourth Proportional to 145,181.21, 218,624.54 and 126,681.93

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Solution

The fourth proportional to 145,181.21, 218,624.54 and 126,681.93 is: 190,766.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,181.21 : 218,624.54 = 126,681.93 : x
  2. Step 2: Convert to fraction form
    145,181.21/218,624.54 = 126,681.93/x
  3. Step 3: Cross multiply
    145,181.21x = 218,624.54 × 126,681.93
  4. Step 4: Simplify right side
    145,181.21x = 27,695,778,039.15
  5. Step 5: Solve for x
    x = 27,695,778,039.15/145,181.21
  6. Step 6: Final answer
    x = 190,766.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.