Home / 112,444.34-155,158.16-72,212.58

Finding the Fourth Proportional to 112,444.34, 155,158.16 and 72,212.58

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Solution

The fourth proportional to 112,444.34, 155,158.16 and 72,212.58 is: 99,643.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,444.34 : 155,158.16 = 72,212.58 : x
  2. Step 2: Convert to fraction form
    112,444.34/155,158.16 = 72,212.58/x
  3. Step 3: Cross multiply
    112,444.34x = 155,158.16 × 72,212.58
  4. Step 4: Simplify right side
    112,444.34x = 11,204,370,680.59
  5. Step 5: Solve for x
    x = 11,204,370,680.59/112,444.34
  6. Step 6: Final answer
    x = 99,643.71

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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.