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Finding the Fourth Proportional to 148,802.82, 205,349.40 and 80,820.45

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Solution

The fourth proportional to 148,802.82, 205,349.40 and 80,820.45 is: 111,533.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,802.82 : 205,349.40 = 80,820.45 : x
  2. Step 2: Convert to fraction form
    148,802.82/205,349.40 = 80,820.45/x
  3. Step 3: Cross multiply
    148,802.82x = 205,349.40 × 80,820.45
  4. Step 4: Simplify right side
    148,802.82x = 16,596,430,915.23
  5. Step 5: Solve for x
    x = 16,596,430,915.23/148,802.82
  6. Step 6: Final answer
    x = 111,533.04

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1.5x scale

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.