Home / 112,753.95-155,525.54-72,518.64

Finding the Fourth Proportional to 112,753.95, 155,525.54 and 72,518.64

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Solution

The fourth proportional to 112,753.95, 155,525.54 and 72,518.64 is: 100,027.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,753.95 : 155,525.54 = 72,518.64 : x
  2. Step 2: Convert to fraction form
    112,753.95/155,525.54 = 72,518.64/x
  3. Step 3: Cross multiply
    112,753.95x = 155,525.54 × 72,518.64
  4. Step 4: Simplify right side
    112,753.95x = 11,278,500,283.47
  5. Step 5: Solve for x
    x = 11,278,500,283.47/112,753.95
  6. Step 6: Final answer
    x = 100,027.54

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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.