Home / 112,520.04-155,272.58-61,531.40

Finding the Fourth Proportional to 112,520.04, 155,272.58 and 61,531.40

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Solution

The fourth proportional to 112,520.04, 155,272.58 and 61,531.40 is: 84,910.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,520.04 : 155,272.58 = 61,531.40 : x
  2. Step 2: Convert to fraction form
    112,520.04/155,272.58 = 61,531.40/x
  3. Step 3: Cross multiply
    112,520.04x = 155,272.58 × 61,531.40
  4. Step 4: Simplify right side
    112,520.04x = 9,554,139,229.01
  5. Step 5: Solve for x
    x = 9,554,139,229.01/112,520.04
  6. Step 6: Final answer
    x = 84,910.56

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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.