Home / 112,527.09-155,354.76-70,143.03

Finding the Fourth Proportional to 112,527.09, 155,354.76 and 70,143.03

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Solution

The fourth proportional to 112,527.09, 155,354.76 and 70,143.03 is: 96,839.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,527.09 : 155,354.76 = 70,143.03 : x
  2. Step 2: Convert to fraction form
    112,527.09/155,354.76 = 70,143.03/x
  3. Step 3: Cross multiply
    112,527.09x = 155,354.76 × 70,143.03
  4. Step 4: Simplify right side
    112,527.09x = 10,897,053,591.32
  5. Step 5: Solve for x
    x = 10,897,053,591.32/112,527.09
  6. Step 6: Final answer
    x = 96,839.38

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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.