Home / 197,657.47-272,766.91-107,013.40

Finding the Fourth Proportional to 197,657.47, 272,766.91 and 107,013.40

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Solution

The fourth proportional to 197,657.47, 272,766.91 and 107,013.40 is: 147,678.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,657.47 : 272,766.91 = 107,013.40 : x
  2. Step 2: Convert to fraction form
    197,657.47/272,766.91 = 107,013.40/x
  3. Step 3: Cross multiply
    197,657.47x = 272,766.91 × 107,013.40
  4. Step 4: Simplify right side
    197,657.47x = 29,189,715,232.11
  5. Step 5: Solve for x
    x = 29,189,715,232.11/197,657.47
  6. Step 6: Final answer
    x = 147,678.28

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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.