Home / 112,390.17-168,591.75-42,270.09

Finding the Fourth Proportional to 112,390.17, 168,591.75 and 42,270.09

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Solution

The fourth proportional to 112,390.17, 168,591.75 and 42,270.09 is: 63,407.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,390.17 : 168,591.75 = 42,270.09 : x
  2. Step 2: Convert to fraction form
    112,390.17/168,591.75 = 42,270.09/x
  3. Step 3: Cross multiply
    112,390.17x = 168,591.75 × 42,270.09
  4. Step 4: Simplify right side
    112,390.17x = 7,126,387,655.03
  5. Step 5: Solve for x
    x = 7,126,387,655.03/112,390.17
  6. Step 6: Final answer
    x = 63,407.57

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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.