Home / 147,779.37-221,700.20-47,931.80

Finding the Fourth Proportional to 147,779.37, 221,700.20 and 47,931.80

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Solution

The fourth proportional to 147,779.37, 221,700.20 and 47,931.80 is: 71,907.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,779.37 : 221,700.20 = 47,931.80 : x
  2. Step 2: Convert to fraction form
    147,779.37/221,700.20 = 47,931.80/x
  3. Step 3: Cross multiply
    147,779.37x = 221,700.20 × 47,931.80
  4. Step 4: Simplify right side
    147,779.37x = 10,626,488,657.69
  5. Step 5: Solve for x
    x = 10,626,488,657.69/147,779.37
  6. Step 6: Final answer
    x = 71,907.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.