Home / 148,601.32-205,070.57-80,621.16

Finding the Fourth Proportional to 148,601.32, 205,070.57 and 80,621.16

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Solution

The fourth proportional to 148,601.32, 205,070.57 and 80,621.16 is: 111,257.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,601.32 : 205,070.57 = 80,621.16 : x
  2. Step 2: Convert to fraction form
    148,601.32/205,070.57 = 80,621.16/x
  3. Step 3: Cross multiply
    148,601.32x = 205,070.57 × 80,621.16
  4. Step 4: Simplify right side
    148,601.32x = 16,533,026,365.47
  5. Step 5: Solve for x
    x = 16,533,026,365.47/148,601.32
  6. Step 6: Final answer
    x = 111,257.60

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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.