Home / 106,749.80-147,312.16-58,349.55

Finding the Fourth Proportional to 106,749.80, 147,312.16 and 58,349.55

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Solution

The fourth proportional to 106,749.80, 147,312.16 and 58,349.55 is: 80,520.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,749.80 : 147,312.16 = 58,349.55 : x
  2. Step 2: Convert to fraction form
    106,749.80/147,312.16 = 58,349.55/x
  3. Step 3: Cross multiply
    106,749.80x = 147,312.16 × 58,349.55
  4. Step 4: Simplify right side
    106,749.80x = 8,595,598,671.21
  5. Step 5: Solve for x
    x = 8,595,598,671.21/106,749.80
  6. Step 6: Final answer
    x = 80,520.98

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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.