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Finding the Fourth Proportional to 103,665.67, 143,070.23 and 58,354.67

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Solution

The fourth proportional to 103,665.67, 143,070.23 and 58,354.67 is: 80,535.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,665.67 : 143,070.23 = 58,354.67 : x
  2. Step 2: Convert to fraction form
    103,665.67/143,070.23 = 58,354.67/x
  3. Step 3: Cross multiply
    103,665.67x = 143,070.23 × 58,354.67
  4. Step 4: Simplify right side
    103,665.67x = 8,348,816,058.47
  5. Step 5: Solve for x
    x = 8,348,816,058.47/103,665.67
  6. Step 6: Final answer
    x = 80,535.98

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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.