Home / 188,391.28-282,543.08-70,118.32

Finding the Fourth Proportional to 188,391.28, 282,543.08 and 70,118.32

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Solution

The fourth proportional to 188,391.28, 282,543.08 and 70,118.32 is: 105,161.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,391.28 : 282,543.08 = 70,118.32 : x
  2. Step 2: Convert to fraction form
    188,391.28/282,543.08 = 70,118.32/x
  3. Step 3: Cross multiply
    188,391.28x = 282,543.08 × 70,118.32
  4. Step 4: Simplify right side
    188,391.28x = 19,811,446,097.23
  5. Step 5: Solve for x
    x = 19,811,446,097.23/188,391.28
  6. Step 6: Final answer
    x = 105,161.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.