Home / 112,528.09-155,356.14-70,144.03

Finding the Fourth Proportional to 112,528.09, 155,356.14 and 70,144.03

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Solution

The fourth proportional to 112,528.09, 155,356.14 and 70,144.03 is: 96,840.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,528.09 : 155,356.14 = 70,144.03 : x
  2. Step 2: Convert to fraction form
    112,528.09/155,356.14 = 70,144.03/x
  3. Step 3: Cross multiply
    112,528.09x = 155,356.14 × 70,144.03
  4. Step 4: Simplify right side
    112,528.09x = 10,897,305,744.84
  5. Step 5: Solve for x
    x = 10,897,305,744.84/112,528.09
  6. Step 6: Final answer
    x = 96,840.76

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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.