Home / 112,886.24-155,712.56-72,652.48

Finding the Fourth Proportional to 112,886.24, 155,712.56 and 72,652.48

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Solution

The fourth proportional to 112,886.24, 155,712.56 and 72,652.48 is: 100,215.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,886.24 : 155,712.56 = 72,652.48 : x
  2. Step 2: Convert to fraction form
    112,886.24/155,712.56 = 72,652.48/x
  3. Step 3: Cross multiply
    112,886.24x = 155,712.56 × 72,652.48
  4. Step 4: Simplify right side
    112,886.24x = 11,312,903,651.15
  5. Step 5: Solve for x
    x = 11,312,903,651.15/112,886.24
  6. Step 6: Final answer
    x = 100,215.08

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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.