Home / 112,841.09-155,826.04-72,624.89

Finding the Fourth Proportional to 112,841.09, 155,826.04 and 72,624.89

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Solution

The fourth proportional to 112,841.09, 155,826.04 and 72,624.89 is: 100,290.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,841.09 : 155,826.04 = 72,624.89 : x
  2. Step 2: Convert to fraction form
    112,841.09/155,826.04 = 72,624.89/x
  3. Step 3: Cross multiply
    112,841.09x = 155,826.04 × 72,624.89
  4. Step 4: Simplify right side
    112,841.09x = 11,316,849,014.14
  5. Step 5: Solve for x
    x = 11,316,849,014.14/112,841.09
  6. Step 6: Final answer
    x = 100,290.14

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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.