Home / 314,827.14-472,101.75-90,136.59

Finding the Fourth Proportional to 314,827.14, 472,101.75 and 90,136.59

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Solution

The fourth proportional to 314,827.14, 472,101.75 and 90,136.59 is: 135,165.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,827.14 : 472,101.75 = 90,136.59 : x
  2. Step 2: Convert to fraction form
    314,827.14/472,101.75 = 90,136.59/x
  3. Step 3: Cross multiply
    314,827.14x = 472,101.75 × 90,136.59
  4. Step 4: Simplify right side
    314,827.14x = 42,553,641,878.03
  5. Step 5: Solve for x
    x = 42,553,641,878.03/314,827.14
  6. Step 6: Final answer
    x = 135,165.10

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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.