Home / 147,779.15-221,699.87-47,931.57

Finding the Fourth Proportional to 147,779.15, 221,699.87 and 47,931.57

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Solution

The fourth proportional to 147,779.15, 221,699.87 and 47,931.57 is: 71,907.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,779.15 : 221,699.87 = 47,931.57 : x
  2. Step 2: Convert to fraction form
    147,779.15/221,699.87 = 47,931.57/x
  3. Step 3: Cross multiply
    147,779.15x = 221,699.87 × 47,931.57
  4. Step 4: Simplify right side
    147,779.15x = 10,626,422,957.72
  5. Step 5: Solve for x
    x = 10,626,422,957.72/147,779.15
  6. Step 6: Final answer
    x = 71,907.46

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1.5x scale

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.