Home / 145,788.11-201,255.14-102,802.63

Finding the Fourth Proportional to 145,788.11, 201,255.14 and 102,802.63

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Solution

The fourth proportional to 145,788.11, 201,255.14 and 102,802.63 is: 141,915.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,788.11 : 201,255.14 = 102,802.63 : x
  2. Step 2: Convert to fraction form
    145,788.11/201,255.14 = 102,802.63/x
  3. Step 3: Cross multiply
    145,788.11x = 201,255.14 × 102,802.63
  4. Step 4: Simplify right side
    145,788.11x = 20,689,556,675.87
  5. Step 5: Solve for x
    x = 20,689,556,675.87/145,788.11
  6. Step 6: Final answer
    x = 141,915.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.