Home / 401,362.74-602,136.25-135,116.15

Finding the Fourth Proportional to 401,362.74, 602,136.25 and 135,116.15

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Solution

The fourth proportional to 401,362.74, 602,136.25 and 135,116.15 is: 202,705.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,362.74 : 602,136.25 = 135,116.15 : x
  2. Step 2: Convert to fraction form
    401,362.74/602,136.25 = 135,116.15/x
  3. Step 3: Cross multiply
    401,362.74x = 602,136.25 × 135,116.15
  4. Step 4: Simplify right side
    401,362.74x = 81,358,331,199.86
  5. Step 5: Solve for x
    x = 81,358,331,199.86/401,362.74
  6. Step 6: Final answer
    x = 202,705.24

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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.