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Finding the Fourth Proportional to 141,802.60, 212,703.90 and 57,603.10

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Solution

The fourth proportional to 141,802.60, 212,703.90 and 57,603.10 is: 86,404.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,802.60 : 212,703.90 = 57,603.10 : x
  2. Step 2: Convert to fraction form
    141,802.60/212,703.90 = 57,603.10/x
  3. Step 3: Cross multiply
    141,802.60x = 212,703.90 × 57,603.10
  4. Step 4: Simplify right side
    141,802.60x = 12,252,404,022.09
  5. Step 5: Solve for x
    x = 12,252,404,022.09/141,802.60
  6. Step 6: Final answer
    x = 86,404.65

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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.