Home / 145,788.36-201,255.48-102,802.87

Finding the Fourth Proportional to 145,788.36, 201,255.48 and 102,802.87

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Solution

The fourth proportional to 145,788.36, 201,255.48 and 102,802.87 is: 141,915.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,788.36 : 201,255.48 = 102,802.87 : x
  2. Step 2: Convert to fraction form
    145,788.36/201,255.48 = 102,802.87/x
  3. Step 3: Cross multiply
    145,788.36x = 201,255.48 × 102,802.87
  4. Step 4: Simplify right side
    145,788.36x = 20,689,640,947.23
  5. Step 5: Solve for x
    x = 20,689,640,947.23/145,788.36
  6. Step 6: Final answer
    x = 141,915.59

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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.