Home / 143,404.04-197,897.74-79,740.47

Finding the Fourth Proportional to 143,404.04, 197,897.74 and 79,740.47

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Solution

The fourth proportional to 143,404.04, 197,897.74 and 79,740.47 is: 110,041.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,404.04 : 197,897.74 = 79,740.47 : x
  2. Step 2: Convert to fraction form
    143,404.04/197,897.74 = 79,740.47/x
  3. Step 3: Cross multiply
    143,404.04x = 197,897.74 × 79,740.47
  4. Step 4: Simplify right side
    143,404.04x = 15,780,458,352.81
  5. Step 5: Solve for x
    x = 15,780,458,352.81/143,404.04
  6. Step 6: Final answer
    x = 110,041.94

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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.