Home / 112,197.78-168,319.62-45,637.38

Finding the Fourth Proportional to 112,197.78, 168,319.62 and 45,637.38

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Solution

The fourth proportional to 112,197.78, 168,319.62 and 45,637.38 is: 68,465.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,197.78 : 168,319.62 = 45,637.38 : x
  2. Step 2: Convert to fraction form
    112,197.78/168,319.62 = 45,637.38/x
  3. Step 3: Cross multiply
    112,197.78x = 168,319.62 × 45,637.38
  4. Step 4: Simplify right side
    112,197.78x = 7,681,666,459.40
  5. Step 5: Solve for x
    x = 7,681,666,459.40/112,197.78
  6. Step 6: Final answer
    x = 68,465.41

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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.