Home / 112,633.74-155,390.28-72,341.88

Finding the Fourth Proportional to 112,633.74, 155,390.28 and 72,341.88

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Solution

The fourth proportional to 112,633.74, 155,390.28 and 72,341.88 is: 99,803.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,633.74 : 155,390.28 = 72,341.88 : x
  2. Step 2: Convert to fraction form
    112,633.74/155,390.28 = 72,341.88/x
  3. Step 3: Cross multiply
    112,633.74x = 155,390.28 × 72,341.88
  4. Step 4: Simplify right side
    112,633.74x = 11,241,224,988.93
  5. Step 5: Solve for x
    x = 11,241,224,988.93/112,633.74
  6. Step 6: Final answer
    x = 99,803.35

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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.