Home / 147,830.40-204,001.60-80,762.40

Finding the Fourth Proportional to 147,830.40, 204,001.60 and 80,762.40

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Solution

The fourth proportional to 147,830.40, 204,001.60 and 80,762.40 is: 111,449.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,830.40 : 204,001.60 = 80,762.40 : x
  2. Step 2: Convert to fraction form
    147,830.40/204,001.60 = 80,762.40/x
  3. Step 3: Cross multiply
    147,830.40x = 204,001.60 × 80,762.40
  4. Step 4: Simplify right side
    147,830.40x = 16,475,658,819.84
  5. Step 5: Solve for x
    x = 16,475,658,819.84/147,830.40
  6. Step 6: Final answer
    x = 111,449.73

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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.