Home / 112,779.36-155,622.96-62,465.76

Finding the Fourth Proportional to 112,779.36, 155,622.96 and 62,465.76

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Solution

The fourth proportional to 112,779.36, 155,622.96 and 62,465.76 is: 86,195.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,779.36 : 155,622.96 = 62,465.76 : x
  2. Step 2: Convert to fraction form
    112,779.36/155,622.96 = 62,465.76/x
  3. Step 3: Cross multiply
    112,779.36x = 155,622.96 × 62,465.76
  4. Step 4: Simplify right side
    112,779.36x = 9,721,106,469.85
  5. Step 5: Solve for x
    x = 9,721,106,469.85/112,779.36
  6. Step 6: Final answer
    x = 86,195.79

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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.