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Finding the Fourth Proportional to 143,332.33, 197,798.74 and 78,802.67

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Solution

The fourth proportional to 143,332.33, 197,798.74 and 78,802.67 is: 108,747.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,332.33 : 197,798.74 = 78,802.67 : x
  2. Step 2: Convert to fraction form
    143,332.33/197,798.74 = 78,802.67/x
  3. Step 3: Cross multiply
    143,332.33x = 197,798.74 × 78,802.67
  4. Step 4: Simplify right side
    143,332.33x = 15,587,068,462.77
  5. Step 5: Solve for x
    x = 15,587,068,462.77/143,332.33
  6. Step 6: Final answer
    x = 108,747.75

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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.